Alliance Laundry Systems SFE707*A Service manual

Troubleshooting
Single and
Stacked Dryers
Refer to Page 6 for Model Numbers
D009C
DRY692C
www.comlaundry.com
Part No. 505893R3
August 2010
Table of
Contents
Section 1 – Safety Information ...............................................................3
Locating an Authorized Servicer...........................................................4
Section 2 – Introduction ..........................................................................5
Customer Service...................................................................................5
Nameplate Location...............................................................................5
Model Identification ..............................................................................6
How Your Dryer Works ......................................................................21
Section 3 – Dryer Troubleshooting ......................................................22
1. Dryer Motor Does Not Run ........................................................23
2. Dryer Stops In Cycle; Quits After The First Few Loads;
Has A Burning Smell; Cycles On Motor Thermal Protector ......25
3. Dryer Motor Runs But Cylinder Does Not Turn ........................26
4. Dryer Motor Does Not Stop........................................................27
5. Dryer Runs Only When Door is Open ........................................28
6. Dryer Heating Assembly Does Not Heat or
Burner Does Not Ignite ...............................................................29
7. Igniter Does Not Glow (Gas Supply Sufficient) –
Gas Dryer Models .......................................................................31
8. Burner Ignites and Goes Out Repeatedly –
Gas Dryer Models .......................................................................32
9. Igniter Glows But Burner Does Not Ignite –
Gas Dryer Models .......................................................................33
10. Dryer Heater Assembly Or Burner Shuts Off Prematurely ........34
11. Dryer Heater Assembly or Burner Repeatedly Cycles Off
On Limit Thermostat...................................................................35
12. Dryer Heater Assembly or Burner Does Not Shut Off ...............37
13. Clothes Do Not Dry in Dryer......................................................38
14. Clothes Are Too Hot When Removed From Dryer ....................39
15. Excessive Chattering Or Vibrating Noise in Dryer ....................40
16. Excessive Humming Or Whistling Noise in Dryer.....................41
Section 4 – Coin Slide Control Troubleshooting.................................42
17. Error Display Mode ....................................................................43
18. No Cycle Start When the Coinslide is Activated........................44
19. Gas Dryer – No Motor Run – Door Open Analysis....................46
20. Gas Dryer – No Motor Run – Push Start Analysis .....................48
21. Gas Dryer – No Heat Analysis....................................................50
22. Electric Dryer – No Motor Run – Door Open Analysis .............53
23. Electric Dryer – No Motor Run – Push Start Analysis ...............55
24. Electric Dryer – No Heat Analysis .............................................57
Section 5 – Electronic Display Control Troubleshooting...................59
25. Error Code Listing .....................................................................59
26. Cannot Perform Infrared Communication ..................................60
27. Coins Ignored When Entered......................................................61
28. Electronic Control Has No Visible Display................................62
29. No Motor Run – Door Open” Analysis – Gas Dryer..................63
30. No Motor Run – “Push Start” Analysis – Gas Dryer..................65
31. No Heat Analysis – Gas Dryer....................................................67
© Copyright 2010, Alliance Laundry Systems LLC
All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without
the expressed written consent of the publisher.
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
1
32.
33.
34.
35.
No Motor Run – “Door Open” Analysis – Electric Dryer..........69
No Motor Run – “Push Start” Analysis – Electric Dryer ...........71
No Heat Analysis – Electric Dryer .............................................73
Audit Switch Function Analysis .................................................75
Section 6 – MDC Control Troubleshooting.........................................76
36. Error Code Listing ......................................................................77
37. Coins Ignored When Entered......................................................78
38. No Visible Display on Control....................................................79
39. Door Open...................................................................................81
40. Motor Will Not Start ...................................................................83
41. No Heat (Electric) .......................................................................85
42. No Heat (Gas) .............................................................................87
Section 7 – NetMaster Control Troubleshooting ................................89
43. Error Codes .................................................................................89
44. Coins Ignored When Entered......................................................92
45. No IR Communication ................................................................93
46. No Display ..................................................................................94
47. Door Open...................................................................................96
48. Motor Will Not Start ...................................................................98
49. No Heat (Electric) .....................................................................100
50. No Heat (Gas) ...........................................................................102
Section 8 – Coin Drop Troubleshooting.............................................104
51. Troubleshooting Coin Drop ......................................................104
Section 9 – Adjustments ......................................................................109
52. Leveling Legs............................................................................109
53. Burner Flame (Gas Models)......................................................110
54. Cleaning Non-Electronic Coin Drop.........................................112
55. Cleaning Electronic Coin Drop.................................................114
Section 10 – Test Procedures ..............................................................117
56. Timer Contacts..........................................................................117
57. Fabric Selector Switch ..............................................................118
58. Drive Motor...............................................................................119
59. Accumulator (Metered Models)................................................122
60. Motor Switch.............................................................................123
61. Burner System Operation (Gas Models)...................................125
62. Electrical Circuit To Ignition System (Gas Models) ................127
63. Gas Valve Coils Check (Gas Models) ......................................127
64. Sensor Check (Gas Models)......................................................128
65. Igniter Check (Gas Models)......................................................128
66. Ignition Control Grounding Check (Silicon Nitride Ignition) ..128
67. Thermal Fuse (Electric Models) ...............................................128
68. Heater Assembly (Electric Models)..........................................129
69. Cycling or Limit Thermostat.....................................................129
70. Door Switch ..............................................................................129
71. Thermistor.................................................................................130
Section 11 – Internal Wiring of Dryer Motor Switch.......................131
2
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
Section 1
Safety Information
Throughout this manual and on machine decals, you will find precautionary statements (“CAUTION,”
“WARNING” and “DANGER”) followed by specific instructions. These precautions are intended for the personal
safety of the operator, user, servicer, and those maintaining the machine.
a DANGER
Danger indicates an imminently hazardous situation that, if not avoided, will cause severe personal injury or death.
a WARNING
Warning indicates a hazardous situation that, if not avoided, could cause severe personal injury or death.
a CAUTION
Caution indicates a hazardous situation that, if not avoided, may cause minor or moderate personal injury or
property damage.
Additional precautionary statements (“IMPORTANT” and “NOTE”) are followed by specific instructions.
IMPORTANT
The word “IMPORTANT” is used to inform the reader of specific procedures where minor machine damage will
occur if the procedure is not followed.
NOTE
The word “NOTE” is used to communicate installation, operation, maintenance or servicing information that is
important but not hazard related.
In the interest of safety, some general precautions relating to the operation of this machine follow.
WARNING
• Failure to install, maintain, and/or operate this machine according to the manufacturer’s
instructions may result in conditions which can produce serious injury, death and/or property
damage.
• Do not repair or replace any part of the machine or attempt any servicing unless specifically
recommended or published in this Service Manual and that you understand and have the
skills to carry out.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded and to reduce the risk of fire,
electric shock, serious injury, or death.
W284
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3
Safety Information
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
Repairs that are made to your products by unqualified persons can result in hazards due to
improper assembly or adjustments subjecting you or the inexperienced person making such
repairs to the risk of serious injury, electrical shock or death.
W007
WARNING
If you or an unqualified person perform service on your machine, you must assume the
responsibility for any personal injury or property damage which may result. The manufacturer
will not be responsible for any injury or property damage arising from improper service and/or
service procedures.
W286
NOTE: The WARNINGS and IMPORTANT INSTRUCTIONS appearing in this manual are not meant to
cover all possible conditions and situations that may occur. Common sense, caution and care must be
exercised when installing, maintaining or operating the machine.
Always contact your dealer, distributor, service agent or the manufacturer about any problems or conditions you do
not understand.
Locating an Authorized Servicer
Alliance Laundry Systems is not responsible for personal injury or property damage resulting from improper
service. Review all service information before beginning repairs.
Warranty service must be performed by an authorized technician, using authorized factory parts. If service is
required after the warranty expires, Alliance Laundry Systems also recommends contacting an authorized
technician and using authorized factory parts.
4
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
Section 2
Introduction
Customer Service
If literature or replacement parts are required, contact
the source from whom the machine was purchased or
contact Alliance Laundry Systems at (920) 748-3950
for the name and address of the nearest authorized parts
distributor.
For technical assistance, call (920) 748-3121.
Nameplate Location
When calling or writing about your dryer, be sure to
mention model and serial numbers. Model and serial
numbers are located on the nameplate. The nameplate
is in one of the four corners of the door well. The door
well is the shaded area shown.
Nameplate
D412P
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
5
Introduction
Model Identification
BDE807*F
X
X
X
X
BDEBEFGS171TN01
BDEBEFGS171TW01
BDEBLFGS431AW01
X
BDET07*F
X
X
X
X
BDGBEFGS111TN01
BDGBEFGS111TW01
BDGBLFGS301AW01
X
BDGT09*F
BFEL07*G4018
X
X
X
BFEX07*F
BFEX07*F4350
BFEX07*G4018
BFGL09*M3013
X
X
X
BFGX09*F
BFGX09*F3060
BFGX09*M3013
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
X
X
GDE907*G3018
GFEG17NG3018
NetMaster
Control
X
BSG909*F
GDE807*G3018
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BSE907*F
X
X
X
X
X
X
X
X
X
BDGBEFGS111CW01
GDE807*F5418
X
X
BDGBEFGS111CN01
FDE807*G4018
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BDG909*F1102
FDE807*G3018
MDC Control
X
BDEBEFGS171CW01
BSG809*F
Electronic
Display Control
X
BDEBEFGS171CN01
BSE807*F
Electromechanical
Control
X
BDE907*F
BDG809*F1102
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Information in this manual is applicable to these dryers.
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
6
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
GFEG17NG4018
GFEY17NG4018
X
X
GFGY19NM3020
HDE007*G3003
HDE007*G3008
HDE007*G3010
HDE007*G4008
HDE007*G4010
X
X
X
X
X
X
X
HDE107*F1502
HDE107*F1702
HDE107*F3000
HDE107*G3003
HDE107*G3018
HDE107*G4018
HDE507*F1702
X
X
HDE707*F1502
HDE707*F1702
HDE907*F1502
HDE907*F1702
HDE907*G3018
HDE907*G4018
HDEB07*J1502
HDEB07*J1702
HDEB07*J99L1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
Central Pay
NetMaster
Control
MDC Control
Coin Slide
Control
X
X
X
X
X
X
X
X
X
X
X
X
HDE507*F1502
HDE907*F
X
X
X
X
X
X
X
X
X
X
X
X
X
HDE107*F
HDE807*F1702
Electronic
Display Control
X
GFGX19NM3020
HDE007*F3000
Electromechanical
Control
X
X
GFEY17NG3018
HDE007*F1702
X
X
X
X
X
X
X
X
X
X
GFEX17NG4018
HDE007*F
Card Reader
Installed
X
GFEX17NG3018
GFGG19NM3020
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
7
HDER07*F1702
HDET07*F
HDET07*F1500
HDET07*F1502
HDET07*F1702
HDEX07*F1702
HDEX07*F3000
HDEX07*G3018
X
X
X
X
X
HDEY07*F
HDEY07*F1500
HDEY07*F1502
HDEY07*F1702
HDEY07*F99N2
X
X
X
X
HDEZ07*F
HDEZ07*F1500
HDEZ07*F1502
HDEZ07*F1702
HDG009*M3008
X
X
X
X
X
HDG109*F1102
HDG109*F3000
HDG109*G3013
HDG109*M3013
X
HDG709*F1102
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
X
X
X
X
X
X
HDG509*F1102
HDG909*F
NetMaster
Control
X
X
X
X
X
HDG109*F
HDG809*F1102
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
HDEX07*F1502
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
HDER07*F1502
HDG009*G3008
MDC Control
X
X
HDEF07*J1702
HDG009*F3000
Electronic
Display Control
X
HDEF07*J1502
HDG009*F1102
Electromechanical
Control
X
HDEB07*J99L2
HDG009*F
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
8
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
HDG909*F1102
X
X
X
X
X
HDGR09*F1102
HDGT09*F
HDGT09*F1102
HDGX09*F3000
HDGX09*M3013
X
X
HDGY09*F
HDGY09*F1102
X
X
HDGZ09*F
HDGZ09*F1102
X
X
X
HFEB07*J1702
X
X
X
X
X
X
HFEL47*G4018
HFEL67*G4018
X
X
X
HFEY07*F1502
HFEY07*F1702
X
HFG509*F1102
X
X
HFGX09*F1102
HFGX09*M3013
X
X
X
X
X
X
X
X
HSE517*F2802
HSE517*F2902
X
X
HSE717*F2802
HSE717*F2902
HSE917*F
X
X
X
X
X
Gas Heat
Electric Heat
X
X
X
X
X
X
X
X
X
HFGY09*F1102
X
X
X
X
X
HFG709*F1102
X
X
X
X
X
X
X
X
X
X
X
X
HFE707*F1702
HFEX07*F1702
Coin Slide
Control
X
HFE507*F1702
HSE117*F2902
Central Pay
X
X
X
X
X
X
X
X
X
X
X
X
X
HDGX09*F1102
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
HDGF09*J1102
HSE117*F2802
NetMaster
Control
X
HDGB09*J99L1
HSE117*F
MDC Control
Electronic
Display Control
Electromechanical
Control
X
HDGB09*J1102
HFE167*G4018
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
9
HSE917*F2802
HSE917*F2902
HSEB17*J99L1
HSEB17*J99L2
HSEF17*J2902
X
X
X
X
X
X
HSER17*F2802
HSER17*F2902
HSET17*F
HSET17*F1500
HSET17*F2802
HSET17*F2902
HSEX17*F2902
X
X
X
X
X
HSEY17*F
HSEY17*F1500
HSEY17*F2802
HSEY17*F2902
HSEY17*F99N2
X
X
X
X
HSEZ17*F
HSEZ17*F1500
HSEZ17*F2802
HSEZ17*F2902
X
X
X
HSG719*F0902
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
X
X
X
X
HSGF19*J0902
HSGR19*F0902
NetMaster
Control
X
X
X
HSG519*F0902
HSGB19*J99L1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
HSEX17*F2802
HSGB19*J0902
X
X
X
X
X
X
X
X
X
HSEF17*J2802
HSG919*F0902
MDC Control
X
X
X
X
X
HSEB17*J2902
HSG919*F
Electronic
Display Control
X
X
HSEB17*J2802
HSG119*F0902
Electromechanical
Control
X
X
HSEB17*J1500
HSG119*F
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
10
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
X
X
HSGT19*F
HSGT19*F0902
X
HSGX19*F0902
X
X
HSGY19*F
HSGY19*F0902
X
X
HSGZ19*F
HSGZ19*F0902
JDE807*F
JDE807*F4350
JDE807*F5418
JDE807*G3018
JDE907*G3018
JDG809*F3060
JDG809*M3013
JDG809*M3020
X
X
X
X
X
X
JDG909*F3060
JDG909*M3013
JDG909*M3020
JSE807*F
JSE807*F4350
X
X
X
X
JSE907*F4350
JSEBGFGW301EW01
JSG809*F
JSG809*F3060
X
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
NetMaster
Control
MDC Control
Electronic
Display Control
Electromechanical
Control
X
X
X
JSEBEFGW301EW01
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
JSE907*F
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
JDGBEFGW301EW01
JDGBGFSW301EN01
X
X
X
X
X
X
X
JDG909*F
JDGBGFGW301EW01
X
X
X
X
X
X
X
X
X
X
X
JDEBEFGW301EW01
JDG809*F
Card Reader
Installed
X
X
X
JDE907*F4350
JDEBGFSW301EN01
X
X
X
X
X
X
X
X
X
X
X
JDE907*F
JDEBGFGW301EW01
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
505893
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11
JSG909*F3060
KFEG17NF1702
KFEG17NG3018
KFEG17NG4018
X
X
X
X
X
X
X
X
KFET17NF
KFET17NF1702
X
X
KFEX17NG3018
KFEX17NG4018
X
X
X
X
KFEY17NF
KFEY17NF1702
KFEY17NG3018
KFEY17NG4018
KFGG19NF
KFGG19NF1102
KFGG19NM3020
X
X
X
X
X
KFGT19NF
KFGT19NF1102
X
KFGX19NM3020
X
X
X
KFGY19NF
KFGY19NF1102
KFGY19NM3020
NDE007*G3018
NDE007*G4018
NDE807*F3022
NDE807*F5422
NDE807*G3018
NDE807*G4018
NDG909*F3022
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
NetMaster
Control
MDC Control
Electronic
Display Control
Electromechanical
Control
X
X
NDE907*F5422
NDG809*F5422
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
NDE907*F3022
NDG809*F3022
Card Reader
Installed
X
X
JSGBEFGW301EW01
KFEG17NF
Card Reader
Ready
X
X
JSG909*F
JSGBGFGW301EW01
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
12
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
X
X
X
X
X
X
NFEL67*G4018
X
X
NFEX07*G3018
NFEX07*G4018
NFGL49*M3013
X
NFGX09*M3013
X
X
NSE917*F5422
SDE007*F1500
SDE007*F3000
SDE007*F4350
SDE007*G3018
SDE107*F3000
SDE107*F4350
SDE107*F5412
SDE107*F5417
SDE107*F99L6
SDE107*F99L7
SDE107*G3018
SDE107*G4018
SDE407*F1500
Gas Heat
Electric Heat
Coin Slide
Control
X
SDE107*F1724
SDE407*F
X
X
X
X
SDE107*F1500
SDE307*F1500
X
X
X
X
X
X
X
X
X
X
X
X
X
SDE107*F
SDE307*F
X
X
X
X
NSGBXFGW301NW22
SDE007*F
X
X
X
NSG919*F3022
X
X
X
X
X
X
X
X
NSEBXFGW301NW22
PDG809*M3013
X
X
X
NSE917*F3022
PDE807*G4018
Central Pay
X
NFEL47*G4018
PDE807*G3018
NetMaster
Control
X
NDG909*F5422
NSE817*F5422
MDC Control
Electronic
Display Control
Electromechanical
Control
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
13
X
X
SDE407*F3000
SDE407*F4350
X
X
SDE507*F
SDE507*F1500
X
X
SDE607*F
SDE607*F1500
X
X
SDE707*F
SDE707*F1500
SDE807*F
SDE807*F1500
SDE807*F3000
SDE807*F4350
SDE907*F
SDE907*F1500
SDE907*F1724
SDE907*F3000
SDE907*F4350
SDE907*F5412
SDE907*G3018
SDE907*G4018
X
X
X
X
X
X
X
X
X
X
X
X
SDEA07*J3000
SDEA07*J4350
X
X
X
X
X
X
X
X
X
SDEB07*J
SDEB07*J1500
SDEBCRGS171TW02
X
X
X
SDEBXRGS171TW02
X
SDEC07*J
X
X
X
X
X
X
X
X
X
SDEF07*J
SDEF07*J1500
SDEF07*J4350
X
X
SDEH07*J
SDEH07*J1500
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
NetMaster
Control
MDC Control
Electronic
Display Control
Electromechanical
Control
X
X
X
X
X
X
X
X
SDEA07*J1500
SDET07*F
X
X
X
X
X
X
X
X
X
X
X
X
SDEA07*J
SDESXRGS171TW02
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
14
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
SDEX07*F1500
SDEX07*F3000
SDEX07*F4350
SDEX07*G3018
SDEX07*G4018
SDEY07*F1500
SDEZ07*F1500
SDG109*F1124
SDG109*F3058
SDG109*F3060
SDG109*F5412
SDG109*F99L6
SDG109*F99L7
SDG109*G3013
SDG109*M3013
X
SDG309*F
X
X
X
X
X
X
X
X
X
X
SDG409*F3000
SDG409*F3058
X
SDG509*F
X
SDG609*F
X
SDG709*F
SDG909*F
SDG909*F1124
SDG909*F3060
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
NetMaster
Control
MDC Control
X
X
X
X
X
X
X
X
X
X
X
X
X
SDG409*F
SDG809*F3060
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SDG109*F
SDG809*F
Electronic
Display Control
X
X
SDEZ07*F
SDG009*F3060
Electromechanical
Control
X
X
SDEY07*F
SDG009*F3058
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SDEX07*F
SDG009*F3000
Card Reader
Installed
X
SDET07*F1500
SDG009*F
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
15
SDG909*F5412
SDG909*M3013
X
SDGF09*J3060
X
SDGH09*J
SDGX09*F3060
SDGX09*M3013
X
SDGY09*F
X
SDGZ09*F
X
X
X
X
X
SFE507*F
SFE507*F1500
X
SFE707*F
X
SFEL07*G4018
SFEL67*G4018
X
SFET07*F
SFEX67*G4018
SFEY07*F
X
X
X
X
SFEF07*J
SFEX07*G4018
X
X
X
X
X
SFEB07*J
SFEX07*G3018
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
X
X
X
X
X
X
X
X
X
X
X
SDGX09*F3000
Coin Slide
Control
X
X
SDGX09*F
SFEX07*F4350
Central Pay
X
SDGT09*F
SFEX07*F3300
X
X
X
X
X
X
SDGF09*J
SFEX07*F
NetMaster
Control
X
X
X
SDGC09*J
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SDGBXRGS111TW02
SFEA07*G3018
MDC Control
X
SDGBCRGS111TW02
SFE407*F
Electronic
Display Control
X
X
SDGB09*J
SFE107*F
Electromechanical
Control
X
X
SDGA09*J
SDGSXRGS111TW02
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
16
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
X
SFEY07*G4018
X
SFG109*F
X
SFG709*F
X
SFGB09*J
X
X
X
X
X
X
SFGL09*M3013
X
SFGT09*F
X
X
SFGX09*M3013
X
SFGY09*F
X
SFGZ09*F
X
SGD109*F3000
SSE007*F
SSE007*F1500
SSE007*F3000
SSE007*F4350
SSE007*F99H2
SSE107*F1500
SSE107*F1724
SSE107*F99L6
SSE107*F99L7
SSE107*G3018
SSE117*F
SSE117*F1500
SSE117*F3000
SSE117*F4350
SSE117*F5412
SSE117*G3018
SSE307*F
SSE307*F1500
SSE417*F
SSE417*F3000
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SSE107*F
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
X
X
X
SFGF09*J
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SFG509*F
SFGX09*F
X
X
X
X
SFG409*F
NetMaster
Control
X
X
X
SFEZ07*F
MDC Control
Electronic
Display Control
Electromechanical
Control
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
17
X
SSE417*F4350
X
X
X
X
SSE507*F
SSE507*F1500
SSE517*F
SSE517*F1500
X
X
SSE607*F
SSE617*F
X
X
SSE707*F
SSE717*F
SSE807*F
SSE807*F1500
SSE807*F3000
SSE807*F4350
SSE807*G3018
SSE907*F
SSE907*F1500
SSE907*F1724
SSE907*G3018
SSE917*F
SSE917*F3000
SSE917*F4350
SSEA07*G3018
SSEA17*J
SSEB07*J
SSEB07*J1500
SSEB17*J
SSEB17*J1500
SSET17*F
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
NetMaster
Control
MDC Control
X
X
SSEF17*J4350
SSET07*F1500
Electronic
Display Control
X
X
X
X
X
X
X
SSEF17*J
SSET07*F
Electromechanical
Control
X
X
X
X
X
X
X
SSEF07*J
SSEH07*J1500
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SSEC07*J
SSEH07*J
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
18
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
SSET17*F1500
SSEY07*F1500
SSEY17*F
SSEZ07*F1500
SSEZ17*F
SSEZ17*F1500
SSG109*F1124
SSG109*F99L6
SSG109*F99L7
SSG109*M3013
SSG119*F
SSG119*F3000
SSG119*F3058
SSG119*F3060
SSG119*F5412
SSG119*F5480
SSG119*M3013
X
SSG309*F
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SSG419*F
SSG419*F3000
SSG419*F3058
X
X
SSG509*F
SSG519*F
X
X
SSG609*F
SSG619*F
X
X
SSG709*F
SSG719*F
X
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
X
X
X
X
X
X
X
X
X
X
X
SSG109*F
Electric Heat
Coin Slide
Control
Central Pay
NetMaster
Control
MDC Control
Electronic
Display Control
X
X
X
X
SSEZ07*F
SSG909*F1124
Electromechanical
Control
X
X
X
SSEY07*F
SSG909*F
X
X
X
X
X
X
X
X
X
X
X
X
SSEX07*G3018
SSG809*F
Card Reader
Installed
X
SSEX07*F
SSG009*F
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
19
SSG919*F
SSG919*F3060
SSGB19*J
X
X
X
SSGF09*J
SSGF19*J
SSGF19*J3060
X
X
X
SSGH09*J
SSGT09*F
SSGT19*F
X
X
X
X
SSGX09*F
SSGX09*M3013
SSGX19*F
SSGX19*F3060
X
X
SSGY09*F
SSGY19*F
X
X
SSGZ09*F
SSGZ19*F
UDE807*F
UDE807*F1702
UDG009*F
UDG009*F3000
UDG009*F3025
UDG809*F
UDG809*F1102
USE007*F
USE017*F5412
USE807*F
USG009*F
USG019*F5412
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
NetMaster
Control
MDC Control
X
SSGC09*J
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
SSGB09*J
UDE007*F3025
Electronic
Display Control
X
X
X
X
SSGA19*J
UDE007*F3000
Electromechanical
Control
X
X
X
SSG909*M3013
UDE007*F
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Counter
Model
Number
Nonmetered
Model
Introduction
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
20
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
USG809*F
X
Gas Heat
Electric Heat
Coin Slide
Control
Central Pay
NetMaster
Control
MDC Control
Electronic
Display Control
Electromechanical
Control
Card Reader
Installed
Card Reader
Ready
Coin Drop
Installed
Coin Drop
Ready
Coin Slide
Ready
Model
Number
Counter
Nonmetered
Model
Introduction
X
* Add Letter To Designate Color. L – Almond W – White Q – Bisque
How Your Dryer Works
Cylinder
Lint Filter
Heater Duct
Air Duct
Exhaust Fan
Gas Valve
DRY1819S
The dryer uses heated air to dry loads of laundry. When the motor is started, the exhaust fan pulls room temperature
air in through louvers at the rear of the dryer and over the heat source (burner flame for gas and heating element for
electric). The heated air moves through the heater duct and into the cylinder, where it circulates through the wet load.
The air then passes through the lint filter, air duct, and exhaust fan, where it is vented to the outdoors.
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
21
Section 3
Dryer Troubleshooting
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
IMPORTANT: Refer to wiring diagram for aid in
testing dryer components.
22
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
Dryer Troubleshooting
1. Dryer Motor Does Not Run
Dryer motor does not run.
No
Is power cord
plugged in?
Plug in cord.
Yes
Is electrical power off or fuse
blown? Check laundry room for
blown or loose fuse(s), or open
circuit breaker(s). The dryer itself
doesn't have an electrical fuse.
Yes
Are motor
starting
functions
inoperative,
does motor
not start, or
motor just
hum?
Yes
Refer to
Adjustments
section to
check start
switch and
start windings.
Check for
foreign
objects
jammed in
blower fan.
Refer to Adjustments
section to check start
switch, start windings
and main windings.
No
No
Is loading
door closed?
Turn power on or
replace fuse. Check
both fuses for
electric models.
No
Is motor dead,
won't run?
Yes
Close door.
No
Yes
Yes
Is door switch
inoperative?
Test switch and
replace if
inoperative.
No
Has motor
overload
protector
cycled?
No
No Reset timer or
try another
cycle.
Is timer
properly
set?
Yes
Yes
Is timer
inoperative?
Test timer and
replace if
inoperative.
Refer to Test
Procedures
section.
Is motor
centrifugal
switch sticky
or plugged
with lint?
No
Wait two or
three minutes
Yes
for overload
protector to
reset. If
protector
cycles
repeatedly,
refer to next
flowchart.
Yes
Remove
dust or lint
and spray
with a
cleaner and
lubricant.
Continued on
next page.
No
DRY1845Sa
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
23
Dryer Troubleshooting
1. Dryer Motor Does Not Run (continued)
Continued from
previous page.
Is there a bind
in motor
bearing?
Yes
No
Is motor wire
harness
connection
block loose?
Yes
Remove belt
and
determine if
motor shaft
will spin.
Replace motor
if shaft is
locked up.
Firmly press
connection
block onto
motor switch.
No
Is wiring
broken, loose
or incorrect?
Yes
Refer to wiring
diagram.
Yes
Refer to wiring
diagram for
correct wiring.
No
Is power cord
miswired?
DRY1845Sb
24
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
Dryer Troubleshooting
2. Dryer Stops In Cycle; Quits After The First Few Loads; Has A Burning
Smell; Cycles On Motor Thermal Protector
Dryer stops in cycle, quits after first few
loads, has burning smell or cycles on
motor thermal protector.
Is voltage
incorrect?
Yes
No
Is clothes
load too
large?
Yes
No
Is clothes
cylinder
binding?
No
Yes
Refer to nameplate in
door well for correct
voltage. Refer to
Installation
Instructions (supplied
with unit) for
electrical
requirements.
Remove part of
load. A normal
washer load is a
normal dryer load.
Maximum load:
dryer cylinder one
half full of wet
clothes.
Check cylinder for
binding and "out of
round" condition.
Check front and rear
bulkheads for
warping. Check
support rollers for
binding. Check
cylinder seals and
glides for wear or
damage. Check for
clothes lodged
between cylinder
baffle and bulkhead.
Is there
broken, loose
or incorrect
wiring?
Yes
Refer to wiring
diagram.
No
Are motor
switch
functions
inoperative?
Yes
Refer to
Adjustments
section to
check switch
and windings.
No
Is there a
short in
motor
winding?
Yes
Refer to
Adjustments
section to
check switch
and windings.
No
Is a clothes
item caught in
fan?
Yes
Check fan for
obstruction.
SWD1690S
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
25
Dryer Troubleshooting
3. Dryer Motor Runs But Cylinder Does Not Turn
Dryer motor runs but
cylinder does not turn.
Is motor drive
pulley loose?
Yes
Tighten pulley.
Is belt "inside
out" ?
Yes
Reinstall belt
with ribbed
surface
against
cylinder.
No
No
Is belt
installed on
pulley?
No
Install belt.
Is idler arm
binding?
Yes
Yes
No
Is cylinder
belt broken?
Yes
Replace belt.
Is dryer
overloaded?
Check cylinder for
binding and "out of
round" condition. Check
front and rear
bulkheads for warping.
Check cylinder rollers
for binding. Check
cylinder seals and
glides for wear or
damage. Check leveling
of unit.
No
Is clothes
cylinder
binding?
Yes
No
Is idler lever
spring broken,
weak or
disconnected?
Yes
Replace or
reconnect
spring.
Is the wrong
motor
installed?
Is the wrong
belt installed?
Is idler arm
bent?
Yes
Refer to parts
manual for
correct motor
part number.
Check belt
part number
Yes against correct
part number in
parts manual
and replace
belt if needed.
Yes Replace idler
arm.
Wipe oil from
cylinder.
DRY1846S
No
26
Yes
Reroute belt.
No
Is there oil on
cylinder?
Remove some
laundry from
dryer.
No
No
Yes
Yes
No
No
Is belt routed
on wrong side
of idler lever?
Add grease
between idler
arm and
motor mount.
Replace idler
arm and bolt
if needed.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
Dryer Troubleshooting
4. Dryer Motor Does Not Stop
Dryer motor does not stop.
Is wiring to
motor switch
incorrect?
Yes
Refer to wiring
diagram.
No
Is motor
centrifugal
switch sticky
or plugged
with lint?
Yes
Remove dust or lint
and spray with a
cleaner and
lubricant.
No
Is door switch
inoperative?
Yes
Test switch and replace if
inoperative. Refer toTest
Procedures section.
Yes
Test timer and replace if
inoperative. Refer toTest
Procedures section.
No
Is accumulator
inoperative?
DRY1847S
505893
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27
Dryer Troubleshooting
5. Dryer Runs Only When Door is Open
Dryer runs when door is
open.
Yes
Is door switch
miswired?
Rewire door
switch. Refer to
wiring diagram.
No
Replace door switch.
DRY1856S
28
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505893
Dryer Troubleshooting
6. Dryer Heating Assembly Does Not Heat or Burner Does Not Ignite
Dryer heating assembly does not
heat or burner does not ignite.
Is exhaust
system
improper or
inadequate?
Yes
Refer to
Installation
Instructions
(supplied with
unit) for
exhaust
requirements.
Is limit
thermostat
inoperative?
No
Test thermostat
and replace if
Yes
inoperative.
Refer to Test
Procedures
section.
No
Is exhaust
duct made of
plastic or thin
foil?
Yes
Replace with
rigid or semirigid metal
exhaust duct.
Is drive
motor switch
inoperative?
Yes
Test switch
and replace if
inoperative.
No
No
Is house fuse
blown or
circuit breaker
tripped?
Check fuses or
circuit breakers. A
Yes 240 Volt electric
heat dryer uses two
fuses. Make sure
both fuses are
good.
No
Is termperature
selector switch
set at FLUFF/NO
HEAT or
inoperative?
No
Electric
Models: Is
heater assembly
inoperative?
Yes
Test heater
assembly and
replace if cold
Ohms do not
read between
9 and 10.5
Ohms.
No
Yes
Reset or test
switch and
replace if
inoperative.
Electric
Models: Is
thermal fuse
inoperative?
Yes
Test thermal
fuse and
replace if
inoperative.
Refer to Test
Procedures
section.
No
Continued on
next page.
DRY1848Sa
505893
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29
Dryer Troubleshooting
6. Dryer Heating Assembly Does Not Heat or Burner Does Not Ignite
(continued)
Continued from
previous page.
Gas Models:
Is gas supply
insufficient?
Yes
No
Gas Models:
Are gas valve
coils
inoperative?
Yes
Check gas
shut-off valve
in dryer and
main gas line
valve. Open
partially closed
gas shut-off
valve or
correct low
gas pressure.
Test coils and
replace if
inoperative.
Refer to Test
Procedures
section.
Gas Models: Is
harness properly
connected to gas
controls?
No
Check
harness
connections
to gas valve
coils, sensor
and main
harness.
Reconnect as
required.
Yes
Gas Models:
Is gas flow
restricted in
gas orifice?
Yes
Clean out gas
orifice.
No
No
Gas Models:
Is sensor
inoperative?
Yes
Test sensor
and replace if
inoperative.
Refer to Test
Procedures
section.
Yes
Test thermostat
and replace if
inoperative. Refer
to Test Procedures
section.
No
No
Gas Models:
Is igniter
inoperative?
Is cycling
thermostat
inoperative?
Yes
Test igniter
and replace if
inoperative.
Refer to Test
Procedures
section.
Is
accumulator
inoperative?
Test and replace
Yes accumulator
if inoperative. Refer to
Test Procedures
section.
No
No
Is wiring
broken, loose
or incorrect?
Yes
Refer to wiring
diagram.
DRY1848Sb
30
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505893
Dryer Troubleshooting
7. Igniter Does Not Glow (Gas Supply Sufficient) – Gas Dryer Models
Gas dryer models: Igniter
does not glow (gas supply
sufficient).
Is there power to
power leads on
valve (pink and
blue wires)?
No
Check selector switch,
thermostats, motor
switch and wiring.
Yes
Has flame
sensor failed
with contacts
open?
Yes
Replace sensor.
No
Is igniter broken
or open?
Yes
Replace igniter.
DRY1850S
505893
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31
Dryer Troubleshooting
8. Burner Ignites and Goes Out Repeatedly – Gas Dryer Models
Gas dryer models: Burner ignites
and goes out repeatedly.
Is exhaust
system
improper or
inadequate?
Yes
Refer to
Installation
Instructions
(supplied with
unit) for
exhaust
requirements.
Is igniter
cracked?
Yes
Replace igniter
and bracket.
No
No
Is weather
hood flapper
restricted?
Yes
Refer to
Installation
Instructions
(supplied with
unit) for
exhaust
requirements.
Are gas valve
coils
inoperative or
intermittent?
Check coils and
replace
Yes appropriate coils.
Refer to Test
Procedures
section.
No
Is burner heat
holding sensor
contacts open?
No
Replace sensor
or correct gas
supply problem.
Yes
Is gas supply
insufficient?
Yes
Check gas supply
and pressure.
Make sure gas
shut-off valve is
turned on.
No
DRY1851S
32
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505893
Dryer Troubleshooting
9. Igniter Glows But Burner Does Not Ignite – Gas Dryer Models
Gas dryer models: Igniter glows but
burner does not ignite.
Did sensor
fail in closed
position?
Yes
No
Is secondary
coil or holding
coil open?
Yes
No
Is gas supply
insufficient?
Yes
Replace sensor.
Is sensor
improperly
installed on
burner
housing?
Yes
Loosen screw
and properly
position the
sensor on the
burner housing.
Replace gas
valve (in
warranty) or
replace coils
(out of
warranty). Refer
to Test
Procedures
section.
Check gas
supply and
pressure. Make
sure gas shutoff valve is
turned on.
No
Are igniter
and bracket
improperly
installed on
burner tube
assembly?
Yes
Loosen screw and
properly position
igniter and bracket
on burner tube
assembly.
No
DRY1852S
505893
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33
Dryer Troubleshooting
10. Dryer Heater Assembly Or Burner Shuts Off Prematurely
Dryer heater assembly or burner
shuts off prematurely.
Is exhaust
system
improper or
inadequate?
Refer to
Installation
Instructions
(supplied with
unit) for
exhaust
requirements.
Yes
Cycling off on
limit
thermostat?
No
Momentarily
connect a
jumper wire
across
thermostat
Yes terminals. If
heater element
heats or burner
ignites when
jumper wire is
connected, refer
to next flowchart.
No
Is weather
hood flapper
restricted?
Refer to
Installation
Instructions
(supplied with
unit) for
exhaust
requirements.
Yes
No
Gas Models: Is
gas supply
insufficient?
Replace sensor
Yes or adjust burner
flame (refer to
Adjustments
section).
Gas Models: Is
sensor contact
closing?
No
Yes
Check main gas
line shut-off
valve. Open
partially closed
gas shut-off
valve or correct
low pressure.
Is cycling
thermostat
inoperative?
Yes
Test thermostat
and replace if
inoperative.
No
No
Gas Models: Is
dryer properly
equipped for type
of gas used?
No
Refer to "Gas
Burner Conversion
Procedures"
supplied in gas
burner conversion
kit.
Yes
Gas Models:
Is burner flame
improperly
adjusted?
Yes
Adjust flame.
Refer to
Adjustments
section.
Is
accumulator
inoperative?
Test and replace
Yes accumulator if
inoperative. Refer
to Test Procedures
section.
No
Is wiring
broken, loose
or incorrect?
Yes Refer to wiring
diagram.
DRY1853S
34
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505893
Dryer Troubleshooting
11. Dryer Heater Assembly or Burner Repeatedly Cycles Off On Limit
Thermostat
Dryer heater assembly or burner repeatedly
cycles off on limit thermostat.
Is external exhaust
system longer or
providing greater
restriction than
recommended?
Yes
Refer to
Installation
Instructions
(supplied with
unit) for
exhaust system
requirements.
Is there lint
or other
obstruction in
external
exhaust
system?
Yes
Disassemble
and clean
exhaust
system.
No
No
Is exhaust duct
made of plastic
or thin foil?
Yes
Replace with rigid
or semi-rigid metal
exhaust duct.
No
Is lint filter
clogged?
Yes
Clean lint
filter.
Is hinged
damper on
exhaust system
weather hood
not free to
open?
Free hinged
Yes damper or
replace
weather
hood.
No
No
Is there lint in
internal dryer
ductwork?
Yes
Disassemble
dryer ductwork
and clean.
Is limit
thermostat
cycling at too
low a
temperature?
Yes
Replace
thermostat.
No
No
Continued on
next page.
SWD1699S-a
505893
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35
Dryer Troubleshooting
11. Dryer Heater Assembly or Burner Repeatedly Cycles Off On Limit
Thermostat (continued)
Continued from
previous page.
Is there an air leak
around loading door?
(Door not sealing due
to damaged seal or
inoperative door
catch)?
Yes Replace seal
or catch.
Is there an air
leak at front
panel seal?
Yes
Check and
replace seal if
necessary.
No
Is thermistor
inoperative?
Yes
No
Is there an air
leak at blower
seal?
Yes
Test
thermistor
and replace if
inoperative.
Refer to Test
Procedures
section.
Check and
replace seal if
necessary.
No
Is there an air
leak at cylinder
seal(s)?
Yes
Check and
replace seal(s)
if necessary.
No
DRY1857S
36
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505893
Dryer Troubleshooting
12. Dryer Heater Assembly or Burner Does Not Shut Off
Dryer heater assembly or
burner does not shut off.
Is motor switch
inoperative?
(Must be in a
heat setting.)
Yes
Test switch and
replace if
inoperative.
No
Motor does
not stop?
Yes
Refer to Dryer
Motor Does Not
Stop paragraph.
No
Is wiring
incorrect?
Yes
Refer to wiring
diagram.
No
Has heater
assembly
shorted?
Yes
Remove heater
assembly and
check for short.
SWD1700S
505893
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37
Dryer Troubleshooting
13. Clothes Do Not Dry in Dryer
Clothes do not dry in dryer.
Does heater
assembly not
heat or
burner not
ignite?
Yes
Refer to Dryer
Heating
Assembly Does
Not Heat or
Burner Does
Not Ignite
paragraph.
Is there too
much water
in articles
being dried?
Yes
No
Is laundry
load too
large?
Yes
No
Is laundry
load too
small?
Yes
Remove
excess water.
Remove part of
load. A normal
washer load is a
normal dryer
load. Maximum
load: Dryer
cylinder one half
full of wet
clothes.
Add one or two
bath towels to
load.
Yes
Yes
Clean lint
filter.
Does heater
assembly or
burner shut off
prematurely?
Yes
No
Gas Models: Is
gas line
pressure too
high or too low?
Yes
Is belt installed
improperly (low
RPM - correct
RPM is 52 ± 1)?
Yes
No
38
Refer to
Installation
Instructions
(supplied with
unit) for exhaust
requirements.
No
No
No
Is there
excessive
lint on lint
filter?
No
Is exhaust
system
improper or
inadequate?
No
Reset switch or
test and
Yes
replace switch
if inoperative.
Refer to Test
Procedures
section.
Is heat selector
switch set on
FLUFF/NO HEAT
or inoperative?
Refer to Dryer
Heater
Assembly or
Burner Shuts
Off Prematurely
paragraph.
If Natural Gas
line pressure to
dryer exceeds 8
inch water
column pressure,
or is lower than
6.5 + 1.5 inch
water column,
ask Gas
Company to
correct.
Check for
proper
installation.
DRY1854S
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505893
Dryer Troubleshooting
14. Clothes Are Too Hot When Removed From Dryer
Clothes are too hot when
removed from dryer.
Is exhaust
system
improper or
inadequate?
Yes
Refer to
Installation
Instructions
(supplied with unit)
for exhaust
requirements.
No
Were clothes
removed from
dryer before
cycle has
completed?
Yes
Allow the dryer to
complete the
cycle through the
cool-down to the
OFF position.
Are seals
inoperative
(air leaks)?
No
Add additional
cool-down time.
Yes
Check and replace any inoperative
seals in the following areas:
1. Seal between loading door and
front panel.
2. Seal between front panel and front
bulkhead.
3. Seal between blower cover and air
duct.
4. Seal between cylinder and front or
rear bulkhead.
5. Gap between air duct and filter
mounting.
No
Is cycling
thermostat
inoperative?
Yes
Test cycling
thermostat and
replace if
inoperative.
No
Is
accumulator
inoperative
(not allowing
cool-down)?
Yes
Test and replace
accumulator if
inoperative. Refer
to Test Procedures
section.
No
DRY1855S
505893
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39
Dryer Troubleshooting
15. Excessive Chattering Or Vibrating Noise in Dryer
Excessive chattering or
vibrating noise in dryer.
Yes
Is idler spring
inoperative?
Remove lower access panel. Set
dryer to normal cycle and allow it
to heat to operating temperature.
If the belt vibrates as it rotates
around the cylinder, the idler
arm is making the noise. Replace
the idler spring.
No
Are idler
pulley and
shaft worn?
Yes
Replace idler
pulley and
shaft.
Yes
Replace
rollers.
No
Are rollers
worn?
No
Check blower fan
for missing or
cracked fan blades.
DRY1858S
40
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505893
Dryer Troubleshooting
16. Excessive Humming Or Whistling Noise in Dryer
Excessive humming or
whistling noise in dryer.
Is blower
housing
inoperative?
Yes
If the abnormal operating noise is
loudest at the vent exit, the
problem is originating from the
blower housing. Replace the
current housing and cover.
No
Check blower fan
for missing or
cracked fan blades.
SWD1704S
505893
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41
Section 4
Coin Slide Control Troubleshooting
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
IMPORTANT: Refer to wiring diagram for aid in testing dryer components.
42
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505893
Coin Slide Control Troubleshooting
17. Error Display Mode
The control enters Error Display Mode to display
thermistor errors. The heater is turned off, the IN
USE LED flashes to indicate the error (refer to
paragraphs below), and the timer will continue to
count down time. The control remains in Error
Display Mode until the control senses the
thermistor has returned to an acceptable heating
range, the cycle ends or machine is powered
down.
a. Open Thermistor
If the control senses a temperature less than 0°F
when the heat has been on for at least three
minutes it will set an open thermistor error. The
control will flash the IN USE LED twice
separated by a one and a half second pause. This
sequence is repeated as long as the Open
Thermistor error is sensed.
b. Shorted Thermistor
If the control senses a temperature greater than
210 ± 4°F during an active cycle it will set a
Shorted Thermistor error. The control will flash
the IN USE LED three times separated by a one
and a half second pause. This sequence is
repeated as long as the Shorted Thermistor error
is sensed.
505893
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43
Coin Slide Control Troubleshooting
18. No Cycle Start When the Coinslide is Activated
No cycle start when the coinslide is activated.
3
Does the in use
light flash and stay
lit when the
coinslide is
activated?
Refer to No
Motor Run
"Door Open
Analysis"
section.
Yes
Is there
continuity
through the
switch?
No
Replace the
switch.
Yes
Replace the
control
harness.
No
1
Is the H8 connection
properly seated on
the control board?
No
Properly seat
the connector
and try again.
Yes
Is the coin slide
switch activated
when the slide is
pulled in?
No
Replace or
repair the slide
extension
assembly.
Yes
2
Is there continuity
through the switch
and switch wires
when activated?
Yes
Replace the
control.
DRY1838S
No
44
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505893
Coin Slide Control Troubleshooting
No Cycle Start When the Coinslide is activated
1
2
3
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45
Coin Slide Control Troubleshooting
19. Gas Dryer – No Motor Run – Door Open Analysis
Gas Dryer - No Motor Run - Door Open Analysis.
Does the in
use light flash
at power up?
No
Check main
power and that
machine is
plugged in.
Yes
Does the in use
light stay on
after coinslide
activation?
No
Refer to No
Start After Coin
Slide Activation
section.
Yes
1
Check for
voltage
between H3-1
and H3-6 of
the control.
No
Replace or
connect the wiring
between NO on
door switch and
control.
Refer to No
Motor
Run - Push
Start Analysis
section.
Yes
2
With
the door
closed, check
line voltage at
COM on door
switch.
No
Check and
correct wiring
between door
switch COM
and service
connection.
Yes
3
With door
closed, check
for line voltage
at NO on
door switch.
No
Replace door
switch.
DRY1839S
Yes
46
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505893
Coin Slide Control Troubleshooting
Gas Dryer – No Motor Run – Door Open Analysis
2
3
1
505893
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47
Coin Slide Control Troubleshooting
20. Gas Dryer – No Motor Run – Push Start Analysis
Gas Dryer - No Motor Run - Push Start Analysis.
1a
1
After start switch
is pushed, is line
voltage present
at H3-4 on
control?
With start switch
pushed is there
continuity through
the switch and
harness?
No
No
Replace
switch.
No
Yes
Yes
2
Is line voltage
present between
5 and 4 on
motor?
Replace control.
Replace
control
harness.
No
Connect wiring
between the
motor and
control.
Yes
Replace motor.
DRY1840S
48
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505893
Coin Slide Control Troubleshooting
Gas Dryer – No Motor Run – Push Start Analysis
1
1a
2
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Coin Slide Control Troubleshooting
21. Gas Dryer – No Heat Analysis
NOTE: Dryer needs to be running in a heating mode. The
following voltage measurements are 120. This also
assumes there are no thermistor errors present.
Gas Dryer - No Heat Analysis
1
6
Is there line
voltage between
FS-2 and
neutral?
No
Connect wiring
between door
switch and FS-2.
Yes
Is line voltage
present across the
input and output of
the gas valve?
Yes
Continued on
next page.
2
Is there
line voltage
at FS-1 on
the control?
Yes
Replace the
control.
No
Connect the
wiring between
the limit
thermostat and
FS-1 on the
control.
4
Is line voltage
present across the
input and output of
the limit
thermostat?
No
7
3
Is line voltage
present between
the input side of
the limit
thermostat?
Yes
No
Yes
Replace the
limit
thermostat.
Is line voltage
present at
motor
connection 2?
Yes
8
Is line voltage
present between
motor
connection 2 and
neutral?
Yes Connect wiring
between motor
1 and neutral.
No
9
No
5
Is line voltage
present at the
input of the gas
valve?
No
Connect the
wiring between
the limit
thermostat and
the gas valve.
Is
line voltage
present
across motor
terminals 1
and 2?
Yes
Replace the
motor.
Yes
DRY1841Sa
50
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505893
Coin Slide Control Troubleshooting
21. Gas Dryer – No Heat Analysis (continued)
Continued from
previous page.
Open lower front panel
and check glow bar. Is
the glow bar activating?
Yes
Check wiring at
gas valve.
Replace gas
valve or coils.
No
No
Replace the
glow bar.
Does the sensor
have continuity?
Yes
Replace the
sensor.
DRY1841Sb
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51
Coin Slide Control Troubleshooting
Gas Dryer – No Heat Analysis
1
2
3
8
5
4
6
7
9
52
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505893
Coin Slide Control Troubleshooting
22. Electric Dryer – No Motor Run – Door Open Analysis
Electric Dryer - No Motor Run - Door Open Analysis
Does the in use
light flash at
power up?
No
Check main
power and that
machine is
plugged in.
Yes
Does the in use
light stay on
after coinslide
activation?
No
Refer to No
Start After
Coinslide
Activation.
Yes
1
Check for line
voltage between
H3-1 and H3-6
of the control.
Yes
Refer to No
Motor
Run - Push
Start Analysis.
No
2
With the door
closed, check
for voltage at
COM on door
switch.
No
Check and
connect wiring
between door
switch COM
and service
connection.
Yes
3
No
With
door closed,
check for line
voltage at NO on
door switch.
Yes
Replace door switch.
Replace or correct the
wiring between NO on door
switch and control.
DRY1842S
505893
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53
Coin Slide Control Troubleshooting
Electric Dryer – No Motor Run – Door Open Analysis
2
3
1
54
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505893
Coin Slide Control Troubleshooting
23. Electric Dryer – No Motor Run – Push Start Analysis
Electric Dryer - No Motor Run - Push Start Analysis
1a
1
After start switch is
pushed is voltage
present at H3-4 on
control?
No
With start switch
pushed is there
continuity through the
switch and harness?
No
Replace
switch.
No
Yes
Yes
Replace control.
Replace control
harness.
2
Is line voltage
present between 5
and 4 on motor?
No Connect wiring between the
motor and control.
Yes
Replace motor.
DRY1843S
505893
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55
Coin Slide Control Troubleshooting
Electric Dryer – No Motor Run – Push Start Analysis
1
1a
2
56
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505893
Coin Slide Control Troubleshooting
24. Electric Dryer – No Heat Analysis
NOTE: Dryer needs to be running in a heating mode. The
following expected voltage measurements are 240 and
assumes no thermistor errors.
Electric Dryer - No Heat Analysis
7
1
Is there line voltage
between FS-2 of the
control and L2?
Yes
No
Connect
wiring
between
FS-2 and
L1.
Is line voltage
present between
the input of the
heating element
and L2?
Connect
wiring
No between
the limit
thermostat
and
element.
2
Yes
Is there line voltage
between FS-1 on the
control and L2?
Yes
No
3
Is line voltage present
between the input side
of the thermal fuse and
L2?
No
8
Replace the
control.
Connect wiring
between the
thermal fuse
and the control.
Yes
Measure for line
voltage across the
input and output of
the heating
element. Reading
should be value
found at wall plug
(i.e. 240 Volt).
No
9
4
Measure for line voltage
across the input and
output of the thermal
fuse.
Yes
Replace the
thermal fuse.
Measure for line
voltage between
motor 2 and L2.
Yes
No
5
No
Is line voltage present
between input of limit
thermostat and L2?
Correct wiring
between limit
thermostat and
thermal fuse.
Yes
6
Measure line voltage
across the input and
output of the limit
thermostat.
Yes Replace the
limit
thermostat.
Connect
wiring
between
No the heating
element
and the
motor.
10
Measure for
line voltage
across motor
1 and L2.
No
Yes Replace
the heating
element.
Yes
Connect
wiring
between
motor 1
and L2.
11
Measure for line
voltage between
motor terminals
H2.
Yes
Replace
motor.
No
DRY1844S
505893
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57
Coin Slide Control Troubleshooting
Electric Dryer – No Heat Analysis
1
2
3
5
4
6
9
7
10
8
11
58
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505893
Section 5
Electronic Display Control Troubleshooting
25. Error Code Listing
Listed below are some of the error codes that may appear on the Electronic Control.
“E:00”
General Error
Proximity Error
Micro-wand IIIe is improperly aimed at Infrared communicator (angle or
distance): Reaim Micro-wand IIIe.
IR Communication
Disconnection
Micro-wand IIIe prematurely pulled away from Electronic Control during
infrared communication: Maintain infrared connection between Micro-wand
IIIe and Electronic Control during communication.
“E:05”
Invalid Value
Communication
Invalid code downloaded from Micro-wand IIIe to Electronic Control:
“E:07”
Inoperative Control
Replace Electronic Control.
“E:08”
Inoperative Control
Replace Electronic Control.
Proximity Error
Micro-wand IIIe is improperly aimed at Infrared communicator (angle or
distance): Reaim Micro-wand IIIe.
Proximity Error
Micro-wand IIIe is improperly aimed at Infrared communicator (angle or
distance): Reaim Micro-wand IIIe.
“E:0B”
IR Communication
Disconnection
Micro-wand IIIe prematurely pulled away from Electronic Control during
infrared communication: Maintain infrared connection between Micro-wand
IIIe and Electronic Control during communication.
“E:0C”
IR Communication
Disconnection
Micro-wand IIIe prematurely pulled away from Electronic Control during
infrared communication: Maintain infrared connection between Micro-wand
IIIe and Electronic Control during communication.
“E:0d”
Pressure Switch
Error
1. Check fill and drain hoses for improper installation and kinks.
2. Check fill electrical circuit: Replace inoperative switches or wires.
“E:0F”
IR Communicator
Programmed Off
Reprogram infrared communicator on.
Coin Error
1. Inoperative coin sensor: Run the Coin Drop Diagnostic test.
2. Coin drop obstruction: Check coin drop area and remove any obstructions.
3. Customer tampering: Evaluate security procedures.
“OP”
Open Thermistor
Physical opening in the thermistor circuit: Change thermistor.
“SH”
Shorted Thermistor
Dead short in the thermistor circuit: Change thermistor.
“E:01”
“E:02”
“E:09”
“E:0A”
“Err”
NOTE: Disconnecting power to the unit may clear the error display.
NOTE: If replacing an inoperative electronic control due to burnt pin(s) on the 6-pin wire harness connector
block, it may be due to damaged terminals in the harness connector. Damaged terminals in the harness
connector will appear burnt or show signs of heat discoloration on the connetor block. Replace the control to
avoid repeated damage.
505893
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59
Electronic Display Control Troubleshooting
26. Cannot Perform Infrared Communication
Attempt to communicate
with the electronic control
from the Micro-wand.
Is
there any
acknowledgement
of any kind from
the electronic
control?
NO
Aim Micro-wand
closer and try
again.
Is
there any
control
response?
NO
Check the following:
– Low battery on Micro-wand.
– Is the (IR) on the control
covered or blocked?
– If needed, replace electronic
control board.
YES
YES
Does
the electronic
control display
"E:OF" or
"– C–" ?
"– C–"
– Is the (IR) cap properly
attached to the Micro-wand?
Communication
sequence checks
out.
"E:OF"
Check the following:
– (IR) disabled by manual prog.
– Is the (IR) on the control
covered or blocked?
– If needed, change electronic
control board.
60
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W367S
505893
Electronic Display Control Troubleshooting
27. Coins Ignored When Entered
Start coin drop
diagnostic test.
Enter several coins.
Does
the electronic
control display
coin counter
increment
properly?
YES
Make sure the
control is reset
properly and
prompting for a
vend.
NOTE: In this section, bring the
control out of the diagnostic mode.
Also, make sure the control is not
in a free vend mode.
NO
NOTE: Inspect and test for continuity
the harness between the drop
and electronic control board.
Open
control
panel
Check
coin
drop
Is
connection
"H2" firmly seated
in its receptacle
on the
control?
NO
Reconnect and
run test again.
YES
Is
the 3-pin
connector plug
firmly seated in
its receptacle?
NO
Reconnect and
run test again.
YES
Are
wires exiting
the coin drop
optical sensor
cracked or
broken?
YES
Replace
coin drop.
NO
Retest again, if not successful
the following is the problem:
– Replace coin drop.
If the problem still exists:
– Replace electronic control.
W368S
505893
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61
Electronic Display Control Troubleshooting
28. Electronic Control Has No Visible Display
ELECTRONIC CONTROL HAS NO VISIBLE DISPLAY – – DRYER
The electronic control
has no LED or VFD
functioning on the
control board.
Is the
power cord
plugged in?
NO
Plug electronic
unit into electrical
outlet.
YES
Open
Control
Panel
1
Is there voltage
at "H4-2" Black to
"H4-3" White?
YES
NO
Disconnect power and check for
broken, loose, or incorrect wiring
from the electrical outlet to the
electronic control.
NOTE:
This voltage check confirms that
main power is present to the control.
Replace electronic
control.
D203S
62
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505893
Electronic Display Control Troubleshooting
29. No Motor Run – Door Open” Analysis – Gas Dryer
Line voltage
to electronic
control board.
Display on.
(#) Numbers next to voltage checks
correspond to the locations marked
on the wiring schematic.
YES
Is the
coin counter
counting down
as coins are
entered in
the drop?
Is the
"DOOR OPEN"
flashing?
YES
YES
Close door.
Still
Flashing
NO
NO
NO
1
Open control-voltage check.
GREY "H4-6" to "H4-3".
Check main power
to dryer.
GREY "H4-1" to "H4-3".
Check and replace inoperative
coin drop.
This checks voltage on door
switch coming into control
and input to "K1" motor relay.
If the problem still exists, refer to
these other troubleshooting guides:
"Electronic Control Has No Visible Display"
or "Coins Ignored When Entered".
Still
Flashing
If voltage is present,
replace control.
Still
Flashing
Check and replace
inoperative wiring
at door switch.
Still
Flashing
Replace door switch.
NOTE:
This test is based on
the assumption that
the "START" button
has been pressed.
Refer to Operation and
Programming manuals
to review the correct
status the control
should be in after the
vend price has been
satisfied and the "START"
button has been pressed.
2
Does
colon flash
and "PUSH START"
go off? Does drying
or cool down
display on the
electronic
control?
NO
YES
Check
voltage at
electronic
control BROWN "H4-4"
to "H4-3",
Is there
voltage?
YES
After checking for
correct wiring,
replace motor.
NO
Replace electronic
control board.
D204S
505893
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63
Electronic Display Control Troubleshooting
No Motor Run – “Door Open” Analysis – Gas Dryer
1
L1
N
3
(NC)
H4-6
DOOR
SWITCH
2
(NC)
H4-1
1
(COM)
120VAC 60 HZ
FS-1
H4-3
DOOR SENSING
CIRCUIT ALLOWS
CONTROL TO TURN
ON MOTOR RELAY "K1"
ONLY WHEN DOOR IS
CLOSED AND GO PAD
PRESSED
H4-2
H4-5
LIMIT
RELAY "K2"
H6-1
H6-2
FS-2
SECONDARY
COIL
RELAY "K1"
SENSOR
HOLDING
COIL
H4-4
H2-3
H2-2
H2-1
H2-5
H2-6
AVAILABLE OUTPUT
TRANSISTOR IS
"OFF" WHEN MACHINE
IS RUNNING
H2-4
AUDIT CONTROL
CIRCUIT
BOOSTER
COIL
TEMPERATURE
REGULATING
CIRCUIT CONTROLS
HEAT
RELAY "K2"
H3-1
H3-3
6
IGNITER
2
1
THERMISTOR
START
3
SERVICE
DOOR
COIN VAULT
4
MOTOR
COIN DROP
SENSOR
SCHEMATIC
TP
MAIN
2
D205S
64
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505893
Electronic Display Control Troubleshooting
30. No Motor Run – “Push Start” Analysis – Gas Dryer
"PUSH START" is flashing
and there is no motor
run on the dryer.
(#) Numbers next to voltage checks
correspond to the locations marked
on the wiring schematic.
Go through the
following checks:
Does
colon
flash and "PUSH
START" go off? Does
drying or cool down
display on the
electronic
control?
NOTE:
This test is based on
the assumption that
the "START" button
has been pressed.
NO
Replace electronic
control board.
Refer to Operation and
Programming manuals
to review the correct
status the control
should be in after the
vend price has been
satisfied and the "START"
button has been pressed.
YES
1
2
Check
voltage at
GREY "H4-1"
to "H4-3",
Is there
voltage?
NO
Replace
door switch.
505893
YES
3
Check
voltage at
BROWN "H4-4"
to "H4-3",
Is there
voltage?
NO
Relay "K1" is
not closing.
Replace electronic
control.
YES
Go
to motor and
check voltage at
BROWN to NEUTRAL,
Is there
voltage?
YES
After checking
wiring, replace
motor.
NO
Replace inoperative wiring.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
D206S
65
Electronic Display Control Troubleshooting
No Motor Run – “Push Start” Analysis – Gas Dryer
1
L1
N
3
(NC)
H4-6
DOOR
SWITCH
2
(NC)
H4-1
1
(COM)
120VAC 60 HZ
FS-1
H4-3
DOOR SENSING
CIRCUIT ALLOWS
CONTROL TO TURN
ON MOTOR RELAY "K1"
ONLY WHEN DOOR IS
CLOSED AND GO PAD
PRESSED
H4-2
H4-5
LIMIT
RELAY "K2"
H6-1
H6-2
FS-2
SECONDARY
COIL
RELAY "K1"
SENSOR
HOLDING
COIL
H4-4
H2-3
H2-2
H2-1
H2-5
H2-6
AVAILABLE OUTPUT
TRANSISTOR IS
"OFF" WHEN MACHINE
IS RUNNING
H2-4
AUDIT CONTROL
CIRCUIT
BOOSTER
COIL
TEMPERATURE
REGULATING
CIRCUIT CONTROLS
HEAT
RELAY "K2"
H3-1
H3-3
6
1
START
3
TP
4
MAIN
MOTOR
COIN DROP
SENSOR
COIN VAULT
2
66
2
THERMISTOR
SERVICE
DOOR
SCHEMATIC
IGNITER
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
3
D207S
505893
Electronic Display Control Troubleshooting
31. No Heat Analysis – Gas Dryer
NO HEAT ANALYSIS
During operation an "OP"
or "SH" may be displayed.
If "SH" or "OP" appear, do
the following checks:
This indicates an open or
shorted thermistor.
Use diagnostic test
"Dryer On Temperature Test".
– Replace thermistor.
1
Does the
thermistor
temperature
check out according
to the diagnostic
test?
YES
NO
2
Check
voltage at
GREY "FS-1"
to "H4-3",
Is there
voltage?
NO
After checking for correct
wiring, replace inoperative
thermistor.
Open lower
front panel and
check glow bar.
Is the glow bar
activating?
(#) Numbers next to voltage checks
correspond to the locations marked
on the wiring schematic.
– Check wiring at thermistor.
Replace inoperative
wiring at terminal
block to electronic
control.
YES
After checking wiring
at gas valve, replace gas
valve or gas valve coils.
YES
Replace inoperative
glow bar.
YES
Check
voltage at
PINK "FS-2"
to "H4-3",
Is there
voltage?
YES
NO
Replace electronic
control board.
NO
3
Check
voltage at
gas valve
PINK "2" to NEUTRAL,
Is there
voltage?
NO
Replace inoperative
limit thermostat.
505893
D208S
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67
Electronic Display Control Troubleshooting
No Heat Analysis – Gas Dryer
1
2
L1
N
3
(NC)
3
H4-6
DOOR
SWITCH
2
(NC)
H4-1
1
(COM)
120VAC 60 HZ
FS-1
H4-3
DOOR SENSING
CIRCUIT ALLOWS
CONTROL TO TURN
ON MOTOR RELAY "K1"
ONLY WHEN DOOR IS
CLOSED AND GO PAD
PRESSED
H4-2
H4-5
LIMIT
RELAY "K2"
H6-1
H6-2
FS-2
SECONDARY
COIL
RELAY "K1"
SENSOR
H4-4
H2-3
H2-2
H2-1
H2-5
H2-6
AVAILABLE OUTPUT
TRANSISTOR IS
"OFF" WHEN MACHINE
IS RUNNING
H2-4
AUDIT CONTROL
CIRCUIT
TEMPERATURE
REGULATING
CIRCUIT CONTROLS
HEAT
RELAY "K2"
H3-1
HOLDING
COIL
BOOSTER
COIL
H3-3
6
1
START
3
TP
4
MAIN
MOTOR
COIN DROP
SENSOR
COIN VAULT
3
68
2
THERMISTOR
SERVICE
DOOR
SCHEMATIC
IGNITER
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
D209S
505893
Electronic Display Control Troubleshooting
32. No Motor Run – “Door Open” Analysis – Electric Dryer
NO MOTOR RUN – – "DOOR OPEN" ANALYSIS
Line voltage to
electronic
control board.
Display on.
YES
Is the
coin counter
counting down
as coins are
entered in
the drop?
Is the
"Door Open"
flashing?
YES
YES
Close door.
Still Flashing
NO
NO
NO
1
Open control-voltage check.
GREY "H4-6" to "H4-3".
GREY "H4-1" to "H4-3".
Check main power
to dryer.
This checks voltage on door
switch coming into control and
input to "K1" motor relay.
Check and replace inoperative
coin drop.
Still Flashing
If the problem still exists, refer to
these other troubleshooting guides:
"Electronic Control Has No Visible Display"
or "Coins Ignored When Entered".
If voltage is present,
replace control.
Still Flashing
Check and replace
inoperative wiring
at door switch.
Still Flashing
NOTE:
This test is based on
the assumption that
the "START" button
has been pressed.
Refer to Operation and
Programming manuals
to review the correct
status the control
should be in after the
vend price has been
satisfied and the "START"
button has been pressed.
2
Does
colon flash
and "Push Start"
go off? Does drying
or cool down
display on the
electronic
control?
NO
YES
Replace door switch.
Check
voltage at
EC control
BROWN "H4-4"
to "H4-3",
Is there
voltage?
YES
After checking for
correct wiring,
replace motor.
NO
Replace electronic
control board.
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
D210S
69
Electronic Display Control Troubleshooting
No Motor Run – “Door Open” Analysis – Electric Dryer
1
L1
L2
208VAC OR 240VAC
N
120VAC
3
(NC)
H4-6
DOOR
SWITCH
2
(NC)
H4-1
1
(COM)
FS-1
H4-3
DOOR SENSING
CIRCUIT ALLOWS
CONTROL TO TURN
ON MOTOR RELAY "K1"
ONLY WHEN DOOR IS
CLOSED AND GO PAD
PRESSED
H4-2
H4-5
HEATING
ELEMENT
THERMAL
FUSE
RELAY "K2"
H6-1
LIMIT
H6-2
FS-2
RELAY "K1"
H4-4
H2-3
H2-2
H2-1
H2-5
H2-6
AVAILABLE OUTPUT
TRANSISTOR IS
"OFF" WHEN MACHINE
IS RUNNING
H2-4
AUDIT CONTROL
CIRCUIT
TEMPERATURE
REGULATING
CIRCUIT CONTROLS
HEAT
RELAY "K2"
H3-1
H3-3
6
1
THERMISTOR
3
SERVICE
DOOR
COIN VAULT
START
TP
4
MAIN
MOTOR
COIN DROP
SENSOR
SCHEMATIC
2
2
D211S
70
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505893
Electronic Display Control Troubleshooting
33. No Motor Run – “Push Start” Analysis – Electric Dryer
NO MOTOR RUN – – "PUSH START" ANALYSIS
"Push Start" is flashing and
there is no motor run on the
dryer.
Go through the following
checks:
NOTE:
This test is based on the assumption that
the "start" button has been pressed.
Does
colon flash
and "Push Start"
go off? Does drying or
cool down display
on the EC
control?
NO
Refer to operation and programming manuals
to review the correct status the control
should be in after the vend price has been
satisfied and the "start" button has been pressed.
Replace electronic
control board.
YES
1
2
Check
voltage at
GREY "H4-1"
to "H4-3",
Is there
voltage?
NO
Replace
door switch.
YES
3
Check
voltage at
BROWN "H4-4"
to "H4-3",
Is there
voltage?
NO
Relay "K1" is not
closing. Replace
electronic control.
YES
Go
to motor and
check voltage at
BROWN to NEUTRAL,
Is there
voltage?
YES
After checking
wiring, replace
motor.
NO
Replace inoperative motor
wiring.
D212S
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
71
Electronic Display Control Troubleshooting
No Motor Run – “Push Start” Analysis – Electric Dryer
1
L1
L2
208VAC OR 240VAC
N
120VAC
3
(NC)
H4-6
DOOR
SWITCH
2
(NC)
H4-1
1
(COM)
FS-1
H4-3
DOOR SENSING
CIRCUIT ALLOWS
CONTROL TO TURN
ON MOTOR RELAY "K1"
ONLY WHEN DOOR IS
CLOSED AND GO PAD
PRESSED
H4-2
H4-5
HEATING
ELEMENT
THERMAL
FUSE
RELAY "K2"
H6-1
LIMIT
H6-2
FS-2
RELAY "K1"
H4-4
H2-3
H2-2
H2-1
H2-5
H2-6
AVAILABLE OUTPUT
TRANSISTOR IS
"OFF" WHEN MACHINE
IS RUNNING
H2-4
AUDIT CONTROL
CIRCUIT
TEMPERATURE
REGULATING
CIRCUIT CONTROLS
HEAT
RELAY "K2"
H3-1
H3-3
6
1
THERMISTOR
START
3
SERVICE
DOOR
TP
COIN VAULT
4
MAIN
MOTOR
COIN DROP
SENSOR
SCHEMATIC
2
2
3
D213S
72
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505893
Electronic Display Control Troubleshooting
34. No Heat Analysis – Electric Dryer
NO HEAT ANALYSIS
During operation an "OP"
or "SH" may be displayed.
if "SH" or "OP" appear, do
the following checks:
This indicates an open or
shorted thermistor.
– Check wiring at thermistor.
– Replace thermistor.
Use diagnostic test
"Dryer on temperature test".
2
1
Does the
thermistor
temperature
check out according
to the diagnostic
test?
YES
NO
Check
voltage at
PNK/BLK "FS–1"
to "H4-3",
Is there
voltage?
NO
After checking for correct
wiring, replace inoperative
thermistor.
Replace inoperative
wiring at terminal block
to electronic control.
YES
Check
voltage at
ORANGE "FS–2"
to"H4-3",
Is there
voltage?
YES
NO
Replace electronic
control board.
3
Check
voltage at
element
orange to neutral,
Is there
voltage?
YES
Replace heating
element.
NO
Replace limit thermostat
and thermal fuse.
505893
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
D214S
73
Electronic Display Control Troubleshooting
No Heat Analysis – Electric Dryer
1
3
2
L1
L2
208VAC OR 240VAC
N
120VAC
3
(NC)
H4-6
DOOR
SWITCH
2
(NC)
H4-1
1
(COM)
FS-1
H4-3
DOOR SENSING
CIRCUIT ALLOWS
CONTROL TO TURN
ON MOTOR RELAY "K1"
ONLY WHEN DOOR IS
CLOSED AND GO PAD
PRESSED
H4-2
H4-5
HEATING
ELEMENT
THERMAL
FUSE
RELAY "K2"
H6-1
LIMIT
H6-2
FS-2
RELAY "K1"
H4-4
H2-3
H2-2
H2-1
H2-5
H2-6
AVAILABLE OUTPUT
TRANSISTOR IS
"OFF" WHEN MACHINE
IS RUNNING
H2-4
AUDIT CONTROL
CIRCUIT
TEMPERATURE
REGULATING
CIRCUIT CONTROLS
HEAT
RELAY "K2"
H3-1
H3-3
6
3
START
TP
4
MAIN
COIN DROP
SENSOR
74
1
THERMISTOR
SERVICE
DOOR
SCHEMATIC
2
COIN VAULT
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
MOTOR
D215S
505893
Electronic Display Control Troubleshooting
35. Audit Switch Function Analysis
AUDIT SWITCH FUNCTION ANALYSIS
NOTE:
Usually review two consecutive audit reports before
sending service personnel to investigate. Remember,
the audit system may be detecting tampering of the
electronic control (EC) unit.
Incorrect audit counts:
Coin drop.
Service door.
Coin vault.
Cycle.
In audit report analysis, the EC computer operator
will have to determine, from the audit reports, what
the servicer should examine on the EC units.
If the servicer cannot find a particular problem,
consult the appropriate audit reports for further analysis.
Coin drop
diagnostic test
"coin drop input test."
Does the drop
pass the
test?
Service
door
diagnostic test
"service door
opening test."
Does the door
pass the
test?
YES
NO
YES
Coin
vault
diagnostic test
"coin vault
opening test."
Does the vault
pass the
test?
NO
NO
Check wiring and
connections
Replace coin drop.
YES
Cycle
Run
Test a complete
dry cycle and
review the manual
audit or micro-wand
"display counts."
Does the cycle
counter
advance?
Check wiring and
connections
Replace service
door switch.
YES
NO
Check wiring and
connections
Replace coin
vault switch.
Replace electronic
control board.
Exit Diagnostic Test
The audit coin count will not
advance in the diagnostic cycle.
Micro-wand or manual
electronic control audit will
have to be accessed to
determine whether audit
counters are advancing.
Is the
audit coin
counter
advancing?
Investigate
– Tampering.
– Service door and machine
cycle var reports.
YES
Investigate
– Tampering.
– Coin vault and
service door
opening reports.
– Machine/cycle
var reports.
Investigate
– Tampering.
– Coin vault and
collection
reports.
Investigate
– Tampering.
– Service door and
machine cycle var
reports.
NOTE:
In the cycle audit test, the cycle count will not
advance on a "rapid advance" cycle. The manual
control audit or micro-wand "show counts" will
have to be accessed to determine whether audit
counters are advancing. Also, the cycle count
does not activate until the end of the cycle.
NO
Check for proper wiring
and connections.
After wiring has been
confirmed correct,
replace EC control board.
505893
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D217S
75
Section 6
MDC Control Troubleshooting
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
IMPORTANT: Refer to wiring diagram for aid in testing dryer components.
76
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MDC Control Troubleshooting
36. Error Code Listing
OP
Open Thermistor Error.
This error code indicates a physical “open” in the thermistor
circuit. Possible causes are: 1) thermistor, 2) wiring between
control and thermistor, or 3) control.
SH
Shorted Thermistor Error
This error code indicates a “short” in the thermistor circuit.
Possible causes are: 1) Shorted thermistor, 2) a short in the
wiring between control and thermistor, or 3) control.
EC:19
(Card Reader
Machines)
No Card Reader
Communication
This error code indicates there is no card reader communication.
The control and the reader cannot communicate. Check reader,
control and harness.
NOTE: For all other Card Reader errors, consult the Card
Reader manufacturer.
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MDC Control Troubleshooting
37. Coins Ignored When Entered
Coins Ignored When Entered
Dwg. 2
Start coin drop
diagnostic test.
Refer to Production
Test Cycle section of
Programming manual.
Does the
display on the
electronic control
increment
properly?
YES
Exit diagnostic
testing and reset
control (prompting
for vend price).
NO
Is
connector H5 on the
control firmly seated in
its receptacle?
NO
Reconnect and
run diagnostic
test again.
YES
Is the
3 pin connector
between the coin drop
and the control
connected
correctly?
NO
YES
Are
wires exiting
coin drop optical
sensor cracked
or broken?
NO
Replace
electronic
control.
YES
Replace coin drop.
If problem still exists
replace the control.
DRY353_S
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MDC Control Troubleshooting
38. No Visible Display on Control
No Display
Dwg. 1
1
Is
there 24 volts AC
across terminals H1-3
and H1-1 on the
control?
YES
Replace the
control.
NO
(2)
2
Is
there 24 Volts AC
across the secondary
of the transformer?
YES
Correct wiring
between the
transformer and
the control.
NO
NOTE: Refer to wiring
diagram for primary
voltage.
Is
Correct wiring to the
there 120 (U.S.)
primary of the
or 240 (overseas) volts
NO
transformer. Make
AC to the primary of
sure the machine is
the transformer?
plugged in and
power is on.
3
(3)
YES
Replace the
transformer.
DRY351_S
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MDC Control Troubleshooting
No Visible Display on Control
3
2
1
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505893
MDC Control Troubleshooting
39. Door Open
Door Open
Dwg. 4
NOTE: Conduct all tests
with the door closed.
1
(1)
Is
there voltage across
terminals H2-1 and
H2-6?
YES
Replace
electronic
control.
NO
2
(2)
Is
there voltage on
the N.O. terminal of
the door switch to a
neutral wire?
YES
Correct wiring
between door
switch and
control. Also
check neutral
supply to control.
NO
3
(3)
Is
there voltage on
the COM teminal of
the door switch to a
neutral wire?
YES
Check operation
of the door
switch.
Replace if
necessary.
NO
Correct wiring to
door switch.
DRY355S
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MDC Control Troubleshooting
Door Open
3
2
1
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505893
MDC Control Troubleshooting
40. Motor Will Not Start
Motor Will Not Start
Dwg. 5
NOTE: Checks to be made only if
motor does not start and door
open indicator is not on. If door
open indicator light is on please
refer to door open trouble
shooting.
1
(1)
Is there voltage across
terminals 5 and 4 of
the motor?
YES
Replace the
motor.
YES
Correct the
wiring to
the motor.
YES
Replace the
electronic
control.
NO
2
(2)
Is there voltage across
H2-4 and H2-6 on the
control?
NO
3
(3)
Is there voltage across
H2-1 and H2-6 on the
control?
NO
Refer to
door open
troubleshooting.
DRY357S
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MDC Control Troubleshooting
Motor Will Not Start
3
2
1
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505893
MDC Control Troubleshooting
41. No Heat (Electric)
Dwg. 6
1
(1)
Is there voltage across
the leads to the heating
element?
7
(7)
YES
Replace heating
element.
Is there voltage on
FS-2 on the control
board to L2?
YES
Make sure unit is
calling for heat.
Check operation
of thermistor.
Replace the
control.
NO
NO
2
(2)
Is there
voltage from the
output side of the
limit thermostat
to L2?
8
(8)
YES
Check and
replace wiring
between
components.
Replace element.
Check for
proper operation
of centrifugal switch on
motor. Does it operate
properly?
YES
Correct wiring
between motor
and element &
motor and L2.
NO
NO
(3)
3
Is there
voltage to the
input side of the limit
thermostat to L2?
YES
Check for proper
air flow and
operation of
limit thermostat.
Replace motor.
NO
4
(4)
Is there
voltage to the
output side of the
thermo fuse on the
element?
YES
NO
5
(5)
Is there voltage to the
input side of the
thermal fuse?
YES
Replace thermo
fuse.
NO
(6)
6
Is there voltage on
FS-1 on the control to
L2?
YES
Correct wiring
between control
and thermo fuse
on the
element.
DRY359S
NO
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MDC Control Troubleshooting
No Heat (Electric)
7
6
5
4
3
2
1
8
86
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505893
MDC Control Troubleshooting
42. No Heat (Gas)
1
(1)
Is there
voltage across
the pink wire of the gas
valve to terminal 2 on
the motor?
YES
Refer to
NOTE.
Replace either the
gas valve, coils of
gas valve or the
sensor.
NO
2
(2)
Is there
voltage at the
output of the limit
thermostat referenced
to neutral?
YES
Correct wiring
between
limit thermostat
and gas valve.
NO
3
(3)
Is there
voltage to the
input of the limit
thermostat referenced
to neutral?
YES
Check for proper
air flow making
sure venting is
not blocked and
lint screen is clean.
Replace limit
thermostat.
NOTE:
When calling for heat the holding coil, the booster coil
and the igniter will be energized. Once the sensor
senses that the igniter is hot enough for ignition, it will
open. At this time the holding coil and the secondary
coil will be energized allowing gas to flow. If the flame
cycles on and off check for proper operation of sensor.
If gas never ignites, check for problems with the coil
and check to see if the sensor opens. If coils are good
and the sensor opens with the glow bar operational
and there is no ignition/gas flow, replace the gas valve.
NO
4
(4)
Is there
voltage across
FS-1 and H2-3
(neutral) on the
control?
YES
Correct wiring
between FS-1 and
limit thermostat.
NO
5
(5)
Is there
voltage across
FS-2 and H2-3
(neutral) on the
control?
YES
Make sure unit
is calling for heat.
Check operation
of thermistor.
Replace control.
NO
Refer to Door Open troubleshooting.
6
(6)
Is there voltage across
terminal 1 of the motor
and L1?
YES
Check for proper
operation of
centrifugal on the
motor. Replace
motor if necessary.
NO
Correct wiring
to the motor.
505893
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87
MDC Control Troubleshooting
No Heat (Gas)
5
4
3
2
1
6
88
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505893
Section 7
NetMaster Control Troubleshooting
43. Error Codes
Following is a list of possible error codes. Errors
beginning with “EI” refer to NetMaster Infra-red
communication errors. Errors beginning with
“EC” refer to NetMaster card reader errors. All
other errors refer to electronic control errors.
Display
Information
Description
Cause/
Corrective Action
EI:01
Transmission Failure
Communication failure. Re-aim Micro-Wand and try again.
EI:02
Device Timeout
Communication failure. Re-aim Micro-Wand and try again.
EI:03
Invalid Command Code
Incorrect machine type. Before downloading, ensure data is
for current machine type.
EI:04
Expecting Upload Request
Communication failure. Re-aim Micro-Wand and try again.
EI:05
Invalid or Out-of-Range Data
Incorrect machine type. Before downloading, ensure data is
for current machine type.
EI:06
Invalid Data Code
Incorrect machine type. Before downloading, ensure data is
for current machine type.
EI:07
Error Writing to RTC
Control failure. Replace control.
EI:08
Error Writing to EEPROM
Control failure. Replace control.
EI:09
CRC-16 Error
Communication failure. Re-aim Micro-Wand and try again.
EI:0A
Invalid Machine Type
Incorrect machine type. Before downloading, ensure data is
for current machine type.
EI:0F
Invalid Wakeup or Infra-red
Disabled
Communication failure or infra-red is disabled. Manually
enable infra-red on control or re-aim Micro-Wand and try
again.
EC:00
General Communication Error
Communication failure. Try card again.
EC:02
Timeout Error
Communication failure. Try card again.
EC:03
Invalid Command Code
Incorrect machine type. Before downloading, ensure data is
for current machine type.
EC:05
Invalid or Out-of-Range Data
Incorrect machine type. Before downloading, ensure data is
for current machine type.
EC:06
Invalid Data Code
Incorrect machine type. Before downloading, ensure data is
for current machine type.
EC:09
Corrupted Data Error
Communication error. Try card again.
EC:0A
Invalid Machine Type
Incorrect machine type. Before downloading, ensure data is
for current machine type.
EC:19
No Card Reader Communication
Communication failure. Power down, power up and try
again. If error persists, replace control or card reader.
(continued)
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NetMaster Control Troubleshooting
Display
Information
Description
Cause/
Corrective Action
EC:20
Unreadable Card
Faulty card or dirty contact. Clean chip on card or card
reader contacts. Try card again. If error persists, card may
be faulty.
EC:21
Security ID Mismatch
Incorrect card. Use card with correct security code.
EC:22
Site Code Mismatch
Incorrect card. Use card with correct site code.
EC:23
Card Maximum Value Exceeded
Value on card over max. Use a card which does not exceed
maximum value.
EC:24
Insufficient Memory on Card
Card memory is full. Download card contents to PC and
clear card for re-use.
EC:25
Card Reader Malfunction
Faulty card reader. Replace card reader.
EC:26
Card Write Error
Try card again. If error persists, card may be faulty.
EC:27
Diagnostic Test Card Write Failure
Faulty card reader. Replace card reader.
EC:28
Diagnostic Test Card Read Failure
Faulty card reader. Replace card reader.
EC:29
Diagnostic Test Memory Test
Failure
Faulty card reader. Replace card reader.
EC:2A
Diagnostic Test Card Interface
Failure
Faulty card reader. Replace card reader.
EC:2b
Diagnostic Test Flash Checksum
Failure
Faulty card reader. Replace card reader.
EC:2C
Biberon or Non-biberon Device
Failure
Faulty card reader. Replace card reader.
EC:2d
Firmware Update Failed, S/W
(Software) Intact
Firmware load failed. Replace card reader.
EC:2E
Firmware Update Failed, S/W Not
Intact
Faulty firmware in reader. Replace card reader.
EC:2F
Firmware Updated, S/W Not Intact
Faulty firmware in reader. Replace card reader.
EC:30
Timeout Error
Replace card reader.
EC:31
Hotlisted Card Inserted Into Reader Card hotlisted. Control will destroy card.
EC:50
Loyalty Purse Read Error
Try card again. If error persists, card may be faulty.
EC:56
Loyalty Purse Write Error
Try card again. If error persists, card may be faulty.
Right most DP
(decimal point) Network Communication Error
Lit
Communication problem. Wait for 1.5 minutes for error to
clear. If error doesn’t clear, power-down and power-up the
machine. If error persists, replace control or network board.
Alrm
Break-in Alarm Error
Service the door or coin vault switches.
OFF
Break-in Alarm Shutdown Error
Service the door or coin vault switches.
E:OP
Open Temperature Sensor Error
Open temperature sensor circuit wiring. Replace sensor.
E:SH
Shorted Temperature Sensor Error
Short in temperature sensor circuit wiring. Replace sensor.
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NetMaster Control Troubleshooting
Display
Information
Description
Cause/
Corrective Action
Err
Coin Error
Invalid coin pulse or inoperative coin sensor. Check coin
drop area and remove obstructions. If error persists,
tampering may have occurred. Evaluate security
procedures.
OP
Open Thermistor
Physical open in the thermistor circuit. Replace thermistor.
SH
Shorted Thermistor
Dead short in the thermistor circuit. Replace thermistor.
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NetMaster Control Troubleshooting
44. Coins Ignored When Entered
Coins Ignored When Entered
Dwg. 2
Start coin drop
diagnostic test.
Does the
display on the
electronic control
increment properly?
YES
Exit diagnostic
testing and reset
control.
NO
NO
Is connector H5 on the
control firmly seated in
its receptacle?
Reconnect
and run
diagnostic test
again.
YES
Is the
3 pin connector
between the coin drop
and the control
connected
correctly?
NO
YES
Are wires exiting coin
drop optical sensor
cracked or broken?
NO
Replace
electronic
control.
YES
Replace coin drop.
If problem still exists
replace the control.
DRY353S
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NetMaster Control Troubleshooting
45. No IR Communication
No IR Communication
Dwg. 3
Attempt
communication
with microwand
to the control.
Check the following:
Is there a response
of any kind from the
electronic control?
No
Bring microwand
closer to the IR
window, aim
properly and try
communication
again.
Yes
Does the electronic
control display “E:OF”
or “-C-”?
Does the control
respond?
No
Yes
“-C-”
- Low battery on
microwand
- Is the IR window
covered or blocked
on the control?
-If needed replace the
electronic control.
- Is the IR cup properly
attached to the
microwand?
Communication
sequence checks
out.
“E:OF”
Check the following:
-Was IR communication
disabled by
manual programming.
DRY354S
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NetMaster Control Troubleshooting
46. No Display
No Display
Dwg. 1
1
(1)
Are there 24 volts AC
across terminals H1-3
and H1-1 on the
control?
YES
Replace
the control.
NO
2
(2)
Are there 24 Volts AC
across the secondary
of the transformer?
YES
Correct wiring
between the
transformer and
the control.
NO
NOTE: Refer to wiring
diagram for primary
voltage.
Correct wiring to the
primary of the
Are there 120 or 240
NO
transformer. Make
volts AC to the primary
sure the machine is
of the transformer?
plugged in and
power is on.
3
(3)
YES
Replace the
transformer.
DRY351S
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NetMaster Control Troubleshooting
No Display
3
2
1
DRY352S_
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NetMaster Control Troubleshooting
47. Door Open
NOTE: Conduct all tests
with the door closed.
1
(1)
Does
resistor at H2-2 and H2-5
read proper ohms?
NO
Replace
resistor.
YES
Replace electronic
control.
YES
2
(2)
Is there voltage across
terminals H2-1 and
H2-6?
NO
3
(3)
Is there
voltage on the
N.O. terminal of the
door switch to a
neutral wire?
YES
Correct wiring
between door switch
and control. Also
check neutral
supply to control.
NO
4
(4)
Is there
voltage on the
COM terminal of the
door switch to a
neutral wire?
YES
Check operation of
the door switch.
Replace if necessary.
NO
Correct wiring to
door switch.
DRY1815S
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NetMaster Control Troubleshooting
Door Open
4
3
1
2
DRY1816S
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NetMaster Control Troubleshooting
48. Motor Will Not Start
Motor Will Not Start
Dwg. 5
NOTE: Checks to be made only if
motor does not start and door
open indicator is not on. If door
open indicator light is on please
refer to door open trouble
shooting.
1
(1)
Is there voltage across
terminals 5 and 4 of
the motor?
YES
Replace the
motor.
YES
Correct the
wiring to
the motor.
YES
Replace the
electronic
control.
NO
2
(2)
Is there voltage across
H2-4 and H2-6 on the
control?
NO
3
(3)
Is there voltage across
H2-1 and H2-6 on the
control?
NO
Refer to
door open
troubleshooting.
DRY357S
98
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NetMaster Control Troubleshooting
Motor Will Not Start
3
2
1
DRY358S_
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NetMaster Control Troubleshooting
49. No Heat (Electric)
No Heat Electric
Dwg. 6
1
(1)
Is there voltage across
the leads to the heating
element?
7
(7)
YES
Replace heating
element.
Is there voltage on
FS-2 on the control
board to L2?
YES
Make sure unit is
calling for heat.
Check operation
of thermistor.
Replace the
control.
NO
NO
2
(2)
Is there
voltage from the
output side of the
limit thermostat
to L2?
8
(8)
YES
Check and
replace wiring
between
components.
Replace element.
Check for
proper operation
of centrifugal switch on
motor. Does it operate
properly?
YES
Correct wiring
between motor
and element &
motor and L2.
NO
NO
(3)
3
Is there
voltage to the
input side of the limit
thermostat to L2?
YES
Check for proper
air flow and
operation of
limit thermostat.
Replace motor.
NO
4
(4)
Is there
voltage to the
output side of the
thermo fuse on the
element?
YES
NO
5
(5)
Is there voltage to the
input side of the
thermal fuse?
YES
Replace thermo
fuse.
NO
(6)
6
Is there voltage on
FS-1 on the control to
L2?
YES
Correct wiring
between control
and thermo fuse
on the
element.
DRY359S
NO
100
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NetMaster Control Troubleshooting
No Heat (Electric)
7
6
5
4
3
2
1
8
DRY360S_
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NetMaster Control Troubleshooting
50. No Heat (Gas)
No Heat Gas
Dwg. 7
(1)
1
Is there
voltage across
the pink wire of the gas
valve to terminal 2 on
the motor?
YES
Refer to
NOTE.
Replace either
the gas valve,
coils of gas valve
or the sensor.
NO
2
(2)
Is there
voltage at the
output of the limit
thermostat referenced
to neutral?
YES
Correct wiring
between
limit thermostat
and gas valve.
NO
NOTE:
When calling for heat the holding coil, the booster coil
and the igniter will be energized. Once the sensor
senses that the igniter is hot enough for ignition, it will
open. At this time the holding coil and the secondary
coil will be energized allowing gas to flow. If the flame
cycles on and off check for proper operation of sensor.
If gas never ignites, check for problems with the coil
and check to see if the sensor opens. If coils are good
and the sensor opens with the glow bar operational
and there is no ignition/gas flow, replace the gas valve.
(3)
3
Is there
voltage to the
input of the limit
thermostat referenced
to neutral?
YES
Check for proper
air flow making
sure venting is
not blocked and
lint screen is clean.
Replace limit
thermostat.
NO
4
(4)
Is there
voltage across
FS-1 and H2-3
(neutral) on the
control?
YES
Correct wiring
between FS-1 and
limit thermostat.
NO
5
(5)
Is there
voltage across
FS-2 and H2-3
(neutral) on the
control?
YES
Make sure unit
is calling for heat.
Check operation
of thermistor.
Replace control.
NO
Refer to Door Open troubleshooting.
(6)
6
Is there voltage across
terminal 1 of the motor
and L1?
YES
Check for proper
operation of
centrifugal on the
motor. Replace
motor if necessary.
NO
Correct wiring
to the motor.
DRY361S
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NetMaster Control Troubleshooting
No Heat (Gas)
5
4
3
2
1
6
DRY362S_
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Section 8
Coin Drop Troubleshooting
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
51. Troubleshooting Coin Drop
a. Non-Electronic Coin Drops:
When coin is placed into coin slot, the coin should
roll down drop and be heard dropping into coin
vault. If coin does not fall into coin vault or if coin
drop sensor does not register that coin has been
entered, follow troubleshooting instructions on
following page. Refer to Figure 1 for path that
coin follows when working properly (nonelectronic coin drops).
IMPORTANT: Never use oil to correct coin drop
problems. Oil residue will prevent coins from
rolling properly.
IMPORTANT: Do not bend or damage mechanical
parts within coin drop.
Additional coins
following path to
sensor
Coin in
Coin Slot
Coin Drop
Sensor
DRY2B
Figure 1
104
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Coin Drop Troubleshooting
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the washer before servicing.
• Never start the washer with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer is properly grounded.
• Motor not grounded! Disconnect electric power before servicing motor.
W485
51. Troubleshooting Coin Drop (continued)
Is proper
electrical power
supplied to coin drop?
(Incorrect electrical connection
may prevent coins from
registering in
coin drop.)
No
Refer to wiring
diagram for
proper connections.
Yes
Is
machine level?
(Machines that aren't
level may prevent coins from
following through required
check stages
of drop.)
No
Refer to
Installation Instructions
for instructions
on leveling machine.
Yes
Is coin drop
clean? (Residue or
lint build-up may prevent
coins from following through
required check stages
of drop.)
No
Refer to
Adjustments section
for instructions on cleaning
drop.
Yes
Do coins
fall freely
through drop?
No
Replace
coin drop.
Yes
Replace
coin drop sensor.
SWD1714S
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Coin Drop Troubleshooting
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the washer before servicing.
• Never start the washer with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer is properly grounded.
• Motor not grounded! Disconnect electric power before servicing motor.
W485
b. Electronic Coin Drops:
If coin drop is not accepting coins, perform the
following:
(1) Clean coin drop. Refer to Paragraph 55.
(2) On electronic coin drops with an old-style
tension spring (shown in Figure 2 and
Figure 4), test and replace tension spring
using the following instructions.
Remove Coin Drop From Machine
(1) Disconnect electrical power to machine and
drop.
(2) Remove coin drop from machine.
Test Tension Spring
(1) Push coin return button to open and close
coin drop cover to clear possible coin jams.
Refer to Figure 2.
(3) If coin drop now operates properly, replace
tension spring using instructions on
following pages.
Replace Tension Spring
(1) Move tension spring downward until cover
catch is free. Refer to Figure 4.
Tension Spring
Cover Catch
DRY2088N
Coin Drop
Cover
Coin Return
Button
Figure 4
(2) Open cover for coin drop.
(3) Place a small flathead screwdriver under
right side of tension spring and lift up.
Refer to Figure 5.
Tension Spring
MIX7B
Small Flathead
Screwdriver
Figure 2
(2) Manually hold down coin drop cover and
insert coin. Refer to Figure 3.
Left Tab
Right Side of
Tension Spring
MIX2B
Figure 5
MIX6B
Coin Drop
Cover
(4) Use screwdriver to move spring
approximately 3 mm to left.
(5) Lift spring over left tab. Refer to Figure 5.
Figure 3
106
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505893
Coin Drop Troubleshooting
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the washer before servicing.
• Never start the washer with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer is properly grounded.
• Motor not grounded! Disconnect electric power before servicing motor.
W485
(6) Rotate spring clockwise, 40 to 60 degrees,
until it is free from right tabs. Refer to
Figure 6.
(11) Place clip, installed on spring, in slot on
coin drop. Refer to Figure 8.
Tabs
Center Tab
Slot
MIX3B
MIX8B
Figure 6
Figure 8
(7) Use screwdriver to remove spring from
center tab. Refer to Figure 6.
(8) Lift spring, with attached clip, off drop.
(9) Remove clip from spring. Refer to
Figure 7.
(12) Use a small flathead screwdriver to push
spring under center tab. Refer to Figure 9.
Clip
MIX4B
Figure 7
Center
Tab
(10) Attach clip to new tension spring, Part No.
209/00598/02.
Small Flat
Screwdriver
Left Tab
MIX5B
Figure 9
(13) Lift spring gently to place in position under
left tab.
(14) Push spring to right until it snaps into
position. Refer to Figure 5.
(15) Close coin drop cover.
(16) Move tension spring over cover catch.
Refer to Figure 4.
505893
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Coin Drop Troubleshooting
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the washer before servicing.
• Never start the washer with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer is properly grounded.
• Motor not grounded! Disconnect electric power before servicing motor.
W485
Reinstall Coin Drop Into Machine
(1) Reinstall coin drop into machine.
(2) Reconnect electrical power to machine and
drop.
(3) Add a coin to drop to verify that coin drop
is operating properly and that electrical
connection is working properly.
108
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Section 9
Adjustments
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
IMPORTANT: When reference is made to
directions (right or left) in this manual, it is from
operator’s position facing front of washer.
NOTE: Legs can be adjusted outside the dryer by
using a 1-1/4 inch size wrench, or from inside the
dryer (with lower front access panel removed) by
using a 1/4 inch drive ratchet with extension.
52. Leveling Legs
b. Keep dryer as close to the floor as possible. All
four legs must rest firmly on the floor so weight
of the dryer is evenly distributed. The dryer
MUST NOT rock.
Refer to Figure 10.
NOTE: Dryer should be installed on a solid and
level floor.
a. Place dryer in position, adjusting the legs until
dryer is level.
WARNING
IMPORTANT: DO NOT move the dryer at any
time unless the dryer is completely assembled. DO
NOT slide the dryer across the floor once the
leveling legs have been extended as the legs and
base could become damaged.
To reduce the risk of serious injury or death
by carbon monoxide and other gases in gas
dryers, carefully read and follow all
instructions given in this section.
W005
Dryer
Base
Leveling
Leg
D351S
Figure 10
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Adjustments
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
53. Burner Flame (Gas Models)
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel.
c. Set timer to 60 minutes.
d. Close the loading door. Start the dryer in a heat
setting (refer to Operating Instructions supplied
with the dryer). The dryer will start, the igniter
will glow red, and the main burner will ignite.
e. Allow the dryer to operate for approximately
five minutes, then loosen the air shutter
lockscrew. Refer to Figure 11.
f. Turn the air shutter to the left to get a luminous
yellow tipped flame, then turn it back slowly to
the right to obtain a steady blue flame.
g. After proper flame is obtained, tighten air
shutter lockscrew firmly. Refer to Figure 11.
h. Reinstall access panel and screws.
WARNING
To reduce the risk of fire or serious injury,
the access panel must be in place during
normal operation.
W262
NOTE: After the dryer has operated for
approximately three minutes, exhaust air or
exhaust pipe should be warm.
110
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Adjustments
Air Shutter
Lockscrew
Shut-Off Valve
Handle
Air
Shutter
1/8 Inch Pipe Plug
(For checking manifold pressure)
D265SE3A
Silicon Carbide Ignition System
Air Shutter
Lockscrew
Shut-Off Valve
Handle
(Shown in Open Position)
WR
Air
Shutter
1/8" Pipe Plug
(For checking manifold pressure)
D363SE3A
Silicon Nitride Ignition System
Figure 11
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Adjustments
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
54. Cleaning Non-Electronic
Coin Drop
g. Remove coin return from coin drop frame.
Refer to Figure 13.
a. Disconnect electrical power to machine and
drop.
b. Remove coin drop from machine.
c. If lint is preventing coins from rolling through
coin drop, blow compressed air though coin
entry and along the side of the coin drop. Refer
to Figure 12.
Cotter
Pin
Coin
Return
Metal
Clip
Coin Drop
Frame
DRY4B
Figure 13
Compressed
Air
DRY3B
h. Check coin path in coin drop for lint and
residue. If lint or light residues are present, use
a cotton swab to remove. If heavy residue is
present, it may be necessary to first scrape off
excessive residue and then use a cotton swab
dipped in water or isopropyl alcohol (rubbing
alcohol) to remove remainder of residue. Refer
to Figure 14.
Figure 12
Cotton
Swab
d. Insert a coin through the coin drop. If coin does
not roll through drop, continue with the
following.
e. Remove cotter pin from top of drop. Refer to
Figure 12. Save pin for reinstallation when
cleaning is complete.
f. Move metal clip closer to sensor so that it
comes off frame. Refer to Figure 12.
DRY5B
Figure 14
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Adjustments
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
i. Check coin return pendulum to verify it swings
freely. If pendulum does not swing freely, spray
pendulum pivot point with Teflon based
lubricant and move pendulum back and forth
two to three times. An additional application of
Teflon based lubricant may be necessary to
ensure that pendulum swings freely. Refer to
Figure 15.
IMPORTANT: DO NOT use isopropyl alcohol to
clean electronic sensor or eyes.
Eyes
Dry
Cotton
Swab
Pivot
Point
DRY7B
Figure 16
Pendulum
DRY6B
Figure 15
j. Check coin drop sensor for dust or dirt on eyes.
Wipe eyes with dry cotton swab. Refer to
Figure 16.
k. Reinstall coin return on to coin drop frame.
l. Reinstall metal clip and slide towards coin
insert slot. All cotter pin holes must line up.
m. Reinstall cotter pin.
n. Place drop on level surface to verify that coins
follow correct path in drop. It may be necessary
to lift drop to allow coin to follow through
sensor.
o. Reinstall coin drop into machine.
p. Reconnect electrical power to machine and
drop.
q. Add a coin to drop to verify that coin drop is
operating properly and that electrical
connection is working properly.
NOTE: If coin drop does not operate properly after
above steps have been completed, corrosion of
metal or vandalized components within coin drop
may be preventing the coin drop from functioning
correctly. Replace coin drop.
505893
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Adjustments
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
55. Cleaning Electronic Coin Drop
(2) Open cover for coin drop. Refer to
Figure 18.
NOTE: The electronic coin drop should be cleaned
once a year. Clean the drop more often if it is
exposed to high levels of residue or lint build-up.
Cover
a. Disconnect electrical power to machine and
drop.
b. Remove coin drop from machine.
c. Check the spring style of coin drop.
Coin Drops with Old-Style Spring (refer to
Figure 17):
(1) Move spring downward until cover catch is
free. Refer to Figure 17.
NOTE: Do not lift or overbend the spring in any
direction.
DRY2089N
Spring
Figure 18
Coin Drops with New-Style Spring (refer
to Figure 19):
Spring
Catch
DRY2088N
Figure 17
DRY2404N
DRY2404N
Figure 19
(3) Open cover of coin drop. Refer to
Figure 20.
114
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505893
Adjustments
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
NOTE: Do not overbend the spring by opening
cover too far.
Spring
DRY2405N
New-Style Spring Coin
DRY2405N
Figure 22
DRY2408N
DRY2408N
e. Clean residue from coin rail with an alcohol
moistened cloth. Refer to Figure 23.
Figure 20
d. Clean the coin path with a soft brush and wipe
exposed surfaces with an alcohol moistened
cloth. Refer to Figure 21 or Figure 22.
Alcohol
Moistened
Cloth
DRY2406N
Figure 23
Old-Style Spring Coin DropDRY2090N
DRY2090N
Figure 21
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Adjustments
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
f. Clean light sensors with a soft brush or air
spray duster. Refer to Figure 24.
Light
Sensors
DRY2407N
DRY2407N
Figure 24
g. Close cover for coin drop.
h. Coin Drops with OLD-Style Spring - Move
spring back over cover catch.
i. Reinstall coin drop into machine.
j. Reconnect electrical power to machine and
drop.
k. Add a coin to drop to verify that coin drop is
operating properly and that electrical
connection is working properly.
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505893
Section 10
Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
IMPORTANT: Electrical test procedures in this
service manual are performed by using a Volt-Ohm
meter. Tests can also be performed using a multimeter or any other electrical testing equipment
with which the service person is familiar.
“N”
56. Timer Contacts
Timer
Motor
Wires
Refer to Figure 25.
a. Disconnect wires from timer, except timer
motor wires.
NOTE: Refer to wiring diagram when rewiring
timer.
b. While supporting timer, remove screws holding
timer to control cabinet.
c. Pull timer out through control panel opening as
far as wires will permit.
d. Manually rotate timer out of “OFF” position
and into cycle.
e. Set test meter to read Ohms. The following
readings should be found:
(1) Motor circuit test – L1 and M = “zero”
Ohms (closed)
(2) Heat circuit test – L2 and H = “zero” Ohms
(closed)
(3) Timer motor test – T and M (1702 and1709
suffix models) or T and N (all other
models) = approximately 2460-3100 Ohms
or apply live power to timer motor
terminals and motor should run.
505893
“H”
“L1”
“M”
DRY1836S
Figure 25
NOTE: Timer Motor Resistance:
120 Volt, 60 Hz2,460 – 3,100 Ohms
240 Volt10,900 – 13,000 Ohms
24 Volt80 – 130 Ohms
(4) Rotate timer to “cooldown” (5 minutes
before “OFF”). “Infinite” (open) reading
should be found between L2 and H.
(5) Rotate timer to “OFF” position. “Infinite”
(open) reading should be found between L1
and M and between L2 and H.
NOTE: Timer motor power is supplied through M
(1702 and1709 models) or N (all other models)
terminal.
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117
Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
57. Fabric Selector Switch
NOTE: Refer to proper model wiring diagram
when rewiring switch.
a. Set test meter to read Ohms and apply meter
probes to switch terminals.
NOTE: Refer to proper model wiring diagram
when reconnecting wires.
FABRIC SELECTOR SWITCH – 4 Position
L1-1
L1-2
Fluff (No Heat)
–
–
Delicate
X
X
Perm. Press
–
X
Normal (Regular) –
X
X indicates closed
FABRIC SELECTOR SWITCH – 3 Position
L1-2
L1-3
L1-1
Fluff (No Heat)
–
X
–
Delicate
X
–
X
Regular/Perm.
X
–
–
Press
X indicates closed
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505893
Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
58. Drive Motor
NOTE: Refer to wiring schematic, Section 11, for
internal motor switch wires.
Refer to Figure 26.
a. Remove motor and exhaust assembly.
b. Disconnect motor wire harness at motor
disconnect block.
NOTE: Drive Motor Resistance
120 Volt2,460 – 3,100 Ohms
240 Volt10,000 - 13,000 Ohms
24 Volt80-130 Ohms
Motor
Switch
Motor
Disconnect
Block
4
3
5
1
Motor and
Exhaust
Assembly
1
6
5
3
G
2
2 6
4
Drive
Motor
D326SE3A
Figure 26
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Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
c. Motor Switch (Refer to SECTION 11 for Internal Wiring of the Dryer Motor Switch.)
WARNING
Disconnect electric power to dryer before performing any of the following steps
or when replacing inoperative motor switch.
W260
Unplug the motor wire harness from the motor
connection block before starting this test.
Start Terminals
Note: Disconnect yellow
wire from motor switch
before testing start
terminals.
A. Continuity exists between switch
terminal 5 and black wire.
NO
YES
B. Manually depress actuator.
Continuity broken between switch
terminal 5 and black wire.
NO
Inoperative motor
switch. Replace switch.
YES
Run Terminals
Note: Reconnect yellow
wire to motor switch
before testing run
terminals.
C. Continuity broken between switch
terminal 6 and yellow wire.
NO
YES
D. Manually depress actuator.
Continuity exists between switch
terminal 6 and yellow wire.
NO
Inoperative motor
switch. Replace switch.
YES
Heater Circuit Terminals
E. Continuity broken between switch
terminal 1 and switch terminal 2.
NO
YES
F. Manually depress actuator.
Continuity exists between switch
terminal 1 and switch terminal 2.
NO
Inoperative motor
switch. Replace switch.
YES
Motor switch checks O.K.
120
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Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
d. Motor Windings (Refer to SECTION 11 for Internal Wiring of the Dryer Motor Switch.)
WARNING
Disconnect electric power to dryer before performing any of the following steps
or when replacing inoperative motor switch.
W260
Start Winding
G. 1 – 2 Ohms between black
wire and orange wire.
NO
Inoperative start winding.
Replace motor.
NO
Inoperative run main
winding. Replace motor.
NO
Inoperative run main
winding. Replace motor.
YES
Run Main Winding
H. 1 – 2 Ohms between yellow
wire and orange wire.
YES
Protector
I.
Continuity exists between
orange wire and brown wire.
YES
All motor windings check O.K.
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Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
59. Accumulator (Metered Models)
NOTE: Refer to wiring diagram when rewiring
switches.
a. Set meter to read Ohms and apply leads on
terminals of each switch. You should read the
following:
Switch A – “zero” Ohms (closed)
Switch B – “zero” Ohms (closed)
Switch C (if present) – “infinite” (open)
b. Manually advance timing cam until it engages
with ratchet wheel and the first “click” is heard.
Switch B should now read “infinite” (open).
c. Continue to rotate timing cam until second
“click” is heard. Switch B should remain open.
Switch A should read “infinite” (open) and
Switch C (if present) should read “zero” Ohms
(closed).
Timing
Cam
Timing
Cam
Ratchet
Wheel
Ratchet
Wheel
Switch
Lever
Switch
Lever
Switches
Switches
TWO SWITCH ACCUMULATOR
THREE SWITCH ACCUMULATOR
D355SE3A
Figure 27
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Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
60. Motor Switch
a. Remove motor and exhaust fan assembly.
b. Remove the two motor switch attaching screws.
Refer to Figure 32. Disconnect switch leads.
Remove motor switch.
c. Remove thermal overload protector.
(1) Motor with Switch on Blower End
Using a small bladed screwdriver, press the
thermal overload protector mounting tab
downward and remove the thermal
overload protector from the inoperative
motor switch. Refer to Figure 28.
NOTE: The thermal overload protector is unique
to the motor from which it was removed and should
only be used on that motor. To reduce the risk of
overheating the motor, do not use any thermal
overload protector other than the one taken from
the inoperative motor switch in step 3.
Mounting
Tab
Thermal
Overload
Protector
Motor
Switch
D029KE3A
Figure 28
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Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
(2) Motor with switch on pulley end
Press the tip of a small bladed screwdriver
into the slot located between top of motor
switch and plastic clip. Lift up on handle of
screwdriver until both clip and thermal
overload protector detach from motor
switch. Refer to Figure 29.
d. Attach the thermal overload protector removed
in Step “c” to the new motor switch.
e. Install new motor switch onto motor and
reconnect motor switch leads removed in Step
“b”. Refer to Figure 32.
f. Test motor switch by following the step-bystep procedures included in Paragraph 58.
g. Before reinstalling the motor assembly, apply
power (120 VAC) directly to motor terminals 4
and 5. Then start and run the motor at least 6
times, making sure the motor and switch are
operating properly.
NOTE: The dryer manufacturer and parts
suppliers are not liable for improper switch
installation.
Thermal
Overload
Protector
Plastic
Clip
Top Of
Motor
Switch
Motor
Switch
D359SE3A
Figure 29
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Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
4
Secondary
Coil
5
1
2
3
Holding Coil
and
Booster Coil
(Split Coil Valve)
120 Volt, 60 Hertz
Electrical
Supply Line
SECONDARY
COIL
Sensor
HOLDING
COIL
BOOSTER
COIL
Igniter
D268SE3A
D267SE3B
Figure 30
61. Burner System Operation
(Gas Models)
Refer to Figure 30.
a. Components
This burner has four basic components: a
silicon carbide (glow bar) igniter, burner tube,
sensor, and a two-stage gas valve consisting of
a split-coil valve and a secondary coil valve.
The split-coil valve is opened when the dryer
thermostat calls for heat, while the secondary
valve does not open until the igniter has attained
ignition temperature.
b. Pre-Ignition Circuits
When the dryer thermostat calls for heat,
circuits are completed through the holding coil,
sensor, booster coil and igniter. Both coils must
be energized to open the split-coil valve. Once
opened, the holding coil can hold the valve
open without assistance from the booster coil.
The sensor triggers the current to travel around
the secondary coil and through the igniter,
causing the igniter to get hot.
c. Burner Circuit
In approximately 30 seconds, the igniter attains
ignition temperature and ignition is made. The
heat from the burner flame causes the sensor
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contacts (located on burner housing beside the
igniter) to open. A circuit is then completed
through the secondary valve coil, opening the
valve and allowing gas to flow.
d. Momentary Power Interruption
Upon resumption of power, sensor contacts will
still be open, permitting secondary valve to
open. However, with the secondary coil in the
circuit, the booster coil cannot draw enough
current to open the split-coil valve. When
sensor contacts do reclose, the secondary valve
will close, and the burner system will be in the
normal pre-ignition circuit.
e. Flame Failure
In case of flame failure, the sensor contacts will
re-close in about 45 seconds. This will close the
secondary valve and the burner system will be
in the normal pre-ignition circuit.
f. Ignition Failure
If flame is not established as sensor contacts
open, secondary valve will remain open until
sensor contacts re-close. Sensor will continue to
recycle the igniter and secondary valve (about
once per minute) until ignition is made or dryer
is turned off.
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125
Test Procedures
1
4
5
2
Secondary
Coil
4 5
1
2
1 - 3
Main
Coil
Redundant
Coil
3
Holding
And Booster
Coil
D270SE3A
D340SE3A
GAS VALVE FOR SILICON CARBIDE IGNITION
GAS VALVE FOR SILICON NITRATE IGNITION
Flame
Sensor
Ground
220/240 Volt,
50 Hertz
Electrical
Supply Line
Igniter
IGNITION
CONTROL
Main
Coil
Redundant
Coil
WIRING SCHEMATIC
D332SE3A
Figure 31
126
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
62. Electrical Circuit To Ignition
System (Gas Models)
63. Gas Valve Coils Check (Gas
Models)
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel.
c. Close main gas shut-off valve. Refer to
Figure 11.
d. Remove valve wire harness disconnect block
from the holding and booster coil. Refer to
Figure 31.
e. Plug dryer power cord into wall receptacle, and
start the dryer in a heat setting (refer to the
Operating Instructions supplied with dryer).
f. Set test meter to read AC voltage and apply
meter probes into terminals on the dryer
harness plug that would correspond to
terminals "1" and "2" on the coil. Figure 30.
Meter should register line voltage in all
temperature settings, except FLUFF (NO
HEAT) which should read “zero” VAC.
g. If meter does not read line voltage in step “f”,
check motor switch, thermostats, fabric switch,
accumulator, or timer.
WARNING
To reduce the risk of fire, explosion and
electric shock, close the valve in the gas
supply line to the gas dryer and disconnect
the electrical power unless gas or power
supplies are required to perform test
procedure.
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a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel.
c. Close main gas shut-off valve. Refer to
Figure 11.
d. Remove disconnect blocks from gas valve
coils.
e. Set test meter to read Ohms and put meter
probes to terminals shown in Figure 31, and in
the following chart.
Silicon Carbide Ignition:
COIL TOLERANCE READINGS
Meter probes to
terminals:
Meter should read:
50 Hertz
60 Hertz
Holding Coil –
Terminals 1 & 2
1700 ± 285
Ohms
1365 ± 230
Ohms
Booster Coil –
Terminals 1 & 3
685 ± 115
Ohms
560 ± 100
Ohms
Secondary Coil –
Terminals 4 & 5
1680 ± 285
Ohms
1325 ± 230
Ohms
Silicon Nitride Ignition:
Both coils should read between 2400-2800
Ohms.
NOTE: If meter registers any other readings than
those listed above, the respective coil(s) should be
replaced.
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127
Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
64. Sensor Check (Gas Models)
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel.
c. Close main gas shut-off valve. Refer to
Figure 11.
d. Remove wires from sensor terminals.
e. Set test meter to read Ohms and put meter
probes on sensor terminals. Meter should read
“zero” Ohms. If meter registers an Ohm reading
of any amount, replace sensor.
65. Igniter Check (Gas Models)
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel.
c. Close main gas shut-off valve. Refer to
Figure 11.
d. Disconnect igniter wires at disconnect block.
e. Set test meter to read Ohms and put meter
probes on terminals of igniter wires.
f. Silicon Carbide Igniter: Meter should read
between 45 – 200 Ohms.
Silicon Nitride Igniter: Meter should read
between 49 – 88 Ohms.
NOTE: If meter does not read appropriate Ohms,
then replace the igniter.
IMPORTANT: Always examine all wires, terminals
and connectors to be sure wiring is correct before
replacing any components.
128
66. Ignition Control Grounding
Check (Silicon Nitride Ignition)
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel.
c. Close main gas shut-off valve. Refer to
Figure 11.
d. Remove wires from sensor terminals.
e. Set test meter to read Ohms and put meter
probes on the ground wire connection in 12-pin
block (connected to module) and on the green
ground screw in base of dryer.
f. Meter should read “zero” Ohms. If meter
registers an Ohm reading of any amount, check
ground wire connection and replace as
necessary.
67. Thermal Fuse (Electric Models)
a. While supporting the access panel, remove two
screws from bottom edge of front access panel.
b. Gently lower the access panel to disengage
panel locators from bottom edge of front panel.
c. Label and disconnect wires from thermal fuse.
NOTE: Refer to wiring diagram when rewiring
thermal fuse.
d. Set multimeter to read Ohms. Apply meter
probes to thermal fuse terminals. Multimeter
should read 0 Ohms. If the meter does not show
any reading (infinite Ohms), then the fuse is
open. If the fuse is open, then replace BOTH
the thermal fuse and the limit thermostat.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
505893
Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
68. Heater Assembly (Electric
Models)
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
panel locators from bottom edge of front panel.
c. Disconnect wires from heater assembly.
NOTE: Refer to wiring diagram when rewiring
heater assembly.
d. Set meter to read Ohms. Apply meter probes to
the heater assembly terminals. Meter should
read as follows: (Cold Ohms).
Heater
Element
KW Voltage/Hz. Resistance Reading
Color
Code
Red
240 V 60
5
10.39 ± .31 Ohms Cold
Hz.
White
208 V 60
4.75
8.2 ± .5 Ohms Cold
Hz.
Green
240 V 50
4.8
10.75 ± .32 Ohms Cold
Hz.
Yellow
240 V 50
4
13.03 ± .39 Ohms Cold
Hz.
Blue
240 V 50
3.1
16.7 ± .5 Ohms Cold
Hz.
Orange
240 V 60
5.35
9.72 ± .3 Ohms Cold
Hz.
Purple
208 V 60
4.25
9.27 ± .3 Ohms Cold
Hz.
69. Cycling or Limit Thermostat
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
panel locators from bottom edge of front panel.
c. Label and disconnect wires from thermostat.
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NOTE: Refer to wiring diagram when rewiring
thermostat.
d. Cycling Thermostat (S.P.S.T. – 2 Terminals)
or Limit Thermostat
(1) Set meter to read Ohms.
(2) Apply meter probes to the thermostat
terminals.
(3) Meter should read “zero.”
e. Cycling Thermostat (S.P.D.T. – 3 Terminals)
(1) Set meter to read Ohms.
(2) Apply meter probes to terminals 1 and 3.
Meter should read “zero”.
(3) Remove screws holding thermostat to
blower fan cover.
(4) Heat thermostat with a small flame until a
distinct “click” is heard, then immediately
apply meter probes to terminals 1 and 2.
Meter should read “zero”.
70. Door Switch
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel.
c. Remove two screws holding bottom tabs on
front panel to dryer side panels. Swing bottom
of front panel away from dryer far enough to
disengage hold-down clips and locators from
cabinet top.
d. Disconnect wires from door switch.
NOTE: Refer to model wiring diagram when
rewiring door switch.
e. Set meter to read Ohms and apply meter probes
on switch terminals 1 and 3 with door closed.
You should get “zero” reading.
f. Apply probes to terminals 1 and 2 with door
closed. The meter should read “infinite”.
g. Open door. Meter should read “infinite”
between 1 and 3 and “zero” between 1 and 2.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
129
Test Procedures
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
71. Thermistor
a. While supporting the access panel, remove two
screws from bottom edge of access panel.
b. Gently lower the access panel to disengage
panel locators from bottom edge of front panel.
c. Label and disconnect wires from thermistor.
NOTE: Refer to wiring diagram when rewiring
thermistor.
d. Set meter to read Ohms.
e. Apply meter probes to the thermistor terminals.
f. Meter should read that resitance is present
(thermistor is not open).
130
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505893
Section 11
Internal Wiring of Dryer Motor Switch
WARNING
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
MAIN
START
BLACK/COPPER
CUSTOMER CIRCUIT
OVERLOAD
PROTECTOR
PUSH TO
START
YELLOW/COPPER
ORANGE/COPPER
BLUE/BROWN
LINE
2 6
4 3
5
1
G
S
R
R
SWITCH SHOWN IN START POSITION
2 6
4 3
5
R.S.P.C.
Motor Switch
Attaching Screws
1
G
D329SE3D
Figure 32
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© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
131