SERVICE DATA SHEET 318047450 (0906) Rev. B

SERVICE DATA SHEET 318047450 (0906) Rev. B
SERVICE DATA SHEET
318047450 (0906) Rev. B
Appliance with Electronic Oven Control
NOTICE
This service data sheet is intended for use by persons having electrical and mechanical training and a level of
knowledge of these subjects generally considered acceptable in the appliance repair trade. The manufacturer
cannot be responsible, nor assume any liability, for injury or damage of any kind arising from the use
of this data sheet.
SAFE SERVICING PRACTICES
To avoid the possibility of personal injury and/or property damage, it is important that safe servicing practices be
observed. The following are some, but not all, examples of safe practices.
1. Do not attempt a product repair if you have any doubts as to your ability to complete it in a safe and
satisfactory manner.
2. Before servicing or moving an appliance, remove power cord from electric outlet, trip circuit breaker to Off, or
remove fuse.
3. Never interfere with the proper installation of any safety device.
4. USE ONLY REPLACEMENT PARTS SPECIFIED FOR THIS APPLIANCE. SUBSTITUTIONS MAY DEFEAT
COMPLIANCE WITH SAFETY STANDARDS SET FOR HOME APPLIANCES.
5. GROUNDING: The standard color coding for safety ground wires is GREEN OR GREEN WITH YELLOW STRIPES.
Ground leads are not to be used as current carrying conductors. IT IS EXTREMELY IMPORTANT THAT THE
SERVICE TECHNICIAN REESTABLISH ALL SAFETY GROUNDS PRIOR TO COMPLETION OF SERVICE. FAILURE TO
DO SO WILL CREATE A POTENTIAL HAZARD.
6. Prior to returning the product to service, ensure that:
• All electric connections are correct and secure.
• All electrical leads are properly dressed and secured away from sharp edges, high-temperature components, and moving parts.
• All uninsulated electrical terminals, connectors, heaters, etc. are adequately spaced away from all metal parts and panels.
• All safety grounds (both internal and external) are correctly and securely reassembled.
• All panels are properly and securely reassembled.
IMPORTANT NOTES
1. 2.
3.
4.
This unit includes an EOC - Relay Board and an EOC - Display Board.
The included board is not field repairable.
The oven temperature can be calibrated, see Use and Care Manual.
The pin on board connectors indicates pin number 1.
DATA SHEET ABBREVIATIONS AND TERMINOLOGY
EOC : Electronic Oven Control
LED : Light-Emitting Diode
MDL : Motor Door Latch
DLB : Double Line Break
RTD : Resistance Temperature Detector / Oven Probe
1
ILLUSTRATION OF OVEN CONTROLS
ELECTRONIC OVEN CONTROL (EOC) - DISPLAY BOARD
J2
1
P2
P1
P6
J3
J4
P10
J5
P8
Display Board Legend:
J2 Keyboard connection.
P1 Micro programming (not used).
P2 DC power input.
J3 Relays control outputs (bake & broil elements, light, MDL, DLB, convection element, convection fan) for upper oven.
J4 Relays control outputs (cooling fan) for both ovens.
J5 Relays control outputs (bake & broil elements, light, MDL, DLB, convection element, convection fan for lower
oven.
P6 Temperature probe inputs.
P8 Door switch and MDL switch for upper oven.
P10Door switch and MDL switch for lower oven.
2
ELECTRONIC OVEN CONTROL (EOC) - RELAY BOARD
P8
P10
P12
J4
P18 P4
P2
P6
K2
K4 K6
K10 K12 K13 K15 K17
J7
J2
J6
J5
P5
K9 K11 K14 K16
K1
K3 K5
J3
P7
P9
P11
P3 P17
P13 P19
P15
K20
P16
P1
Relay Board Legend:
P1 Double line break (L2 out), upper oven.
P2 Double line break (L2 out), lower oven.
P3 L2 in, upper oven.
P4 L2 in, lower oven.
P5 L1, upper oven.
P6 L1, lower oven.
P7 Broil, upper oven.
P8 Broil, lower oven.
P9 Bake, upper oven.
P10Bake, lower oven.
P11Not used.
P12Not used.
P13Convection element, upper oven.
P15L1 in
P16Convection element, lower oven.
P17Not used.
P18Not used.
P19Not used.
J2
J3
J4
J5 J6
J7 K18 K19
K1 Double line break relay, upper oven.
K2 Double line break relay, lower oven.
K3 Broil relay, upper oven.
K4 Broil relay, lower oven.
K5 Bake relay, upper oven.
K6 Bake relay, lower oven.
K9 Convection fan, upper oven.
K10Convection fan, lower oven.
K11Motor door latch relay, upper oven.
K12Motor door latch relay, lower oven.
K13Oven light relay, lower oven.
K14Oven light relay, upper oven.
K15Cooling fan, low speed relay, lower oven.
K16Cooling fan, low speed relay, upper oven.
K17Cooling fan, high speed relay, lower oven.
K18Cooling fan, high speed relay, upper oven.
K19Convection element, upper oven.
K20Convection element, lower oven.
DC power output to display board.
AC power outputs (motor door latch, light, cooling fan, convection fan) for upper oven.
AC power outputs (motor door latch, light, cooling fan, convection fan) for lower oven.
L1 and Neutral input.
Relays control inputs (bake & broil elements, light, motor door latch, DLB, convection fan) for upper oven.
Relays control inputs (cooling fan) for both ovens. Convection element upper / lower oven.
Relays control inputs (bake & broil elements, light, motor door latch, DLB, convection fan) for lower oven.
3
RTD SCALE
ELECTRICAL RATING
Temp. °F
Temp. °C
Resistance (ohms)
32 ± 1.9
0.0 ± 1.1
1000 ± 4.0
75 ± 2.5
23.9 ± 1.4
1091 ± 5.3
250 ± 4.4
121.1 ± 2.4
1453 ± 8.9
350 ± 5.4
176.7 ± 3.0
1654 ± 10.8
450 ± 6.9
232.2 ± 3.8
1852 ± 13.5
550 ± 8.2
287.8 ± 4.6
2047 ± 15.8
650 ± 9.6
343.3 ± 5.3
2237 ± 18.5
900 ± 13.6 482.2 ± 7.6
2697 ± 24.4
27" Model
30" Model
Broil Element
Wattage
3400W /
2554W
4000W /
3004W
Bake Element
Wattage
1450W /
1089W
2200W /
1652W
Convection
Element
Wattage
350W
350W
or
500Wt
KW Rating
240/208V
t
See serial plate
Models with dual convection fans.
OVEN
TEMPERATURE
SENSOR
UPPER OVEN CIRCUIT ANALYSIS MATRIX
On Relay Board
ELEMENTS
Bake
Bake
P9
Broil
P7
Conv
P13
Conv
Fan
J3-4
X
X
X
X
Oven
Light
J3-6
Door
Motor
J3-5
DLB
L2 out
P1
Cooling Fan
Low Speed
J3-7
X
X
X
X
X
Broil
On Display Board
Cooling Fan
High Speed
J3-8
X
Convection Bake
X
X
X
X
X
X
Convection Roast
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Convection Broil
Clean
X
X
Door Switch
P8-3 / P8-5
X
Locking / Unlocking
Light
X
Door Open
X
X
Door Closed
LOWER OVEN CIRCUIT ANALYSIS MATRIX
On Relay Board
ELEMENTS
Bake
Bake
P10
Broil
P8
Conv
P16
Conv
Fan
J4-5
X
X
X
X
Oven
Light
J4-7
Door
Motor
J4-6
X
Broil
On Display Board
DLB
L2 out
P2
Cooling Fan
Low Speed
J4-8
X
X
X
X
Cooling Fan
High Speed
J4-9
X
Convection Bake
X
X
X
X
X
X
Convection Roast
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Convection Broil
Clean
X
X
X
Locking / Unlocking
Light
X
Door Open
X
X
Door Closed
Relay will operate in this condition only
Door Switch
P10-3 / P10-6
4
ELECTRONIC OVEN CONTROL (EOC) FAULT CODE DESCRIPTIONS
Note: Generally speaking “F1x” implies a control failure, “F3x” an oven probe problem, and “F9x” a latch motor problem.
Code Condition / Cause
Suggested Corrective Action
F10
Control has sensed a potential runaway oven - Check RTD sensor probe and replace if necessary. If oven is overheating,
condition. Control may have shorted relay, disconnect power. If oven continues to overheat when power is reapplied,
RTD sensor probe may have a gone bad. replace the EOC-Display Board.
F11
Shorted Key: a key has been detected - Press Clear or Cancel key.
as pressed (for a long period) will be - If fault returns, replace the keyboard (membrane).
considered a shorted key alarm and will - If the problem persists, replace the EOC- Display Board.
terminate all oven activity.
F13
Control's internal checksum may have - Press CLEAR key. - Disconnect power, wait 10 seconds ad reapply power.
become corrupted.
If fault returns upon power-up, replace EOC- Display Board.
F14
Misconnected keyboard cable.
- Disconnect power. Verify the flat cable connection between the keyboard
membrane and the EOC- Display Board on J2.
- If the problem persists, replace the EOC- Display Board.
- If the connection is good but the problem persists, replace the keyboard
(membrane switch).
F15
Controller self check failed.
- Replace the EOC- Display Board.
F30
F31
Open RTD sensor probe/ wiring problem. - Check wiring in probe circuit for possible open condition.
Note: EOC may initially display an "F10", - Check RTD resistance at room temperature (compare to probe resistance
chart). If resistance does not match the chart, replace the RTD sensor
thinking a runaway condition exists.
probe.
Shorted RTD sensor probe / wiring - Let the oven cool down and restart the function
problem.
- If the problem persists, replace the EOC- Display Board.
- The 60Hz synchronization signal (zero-cross) is sent by the EOC-Relay
Board to the EOC-Display Board. Verify first the connection between the
EOC-Relay Board on connector J2 pin 5 and the EOC-Display Board on
connector P2 pin 5 (check for continuity).
- If wiring is good, replace the EOC-Relay Board.
- If problem persists, replace the EOC- Display Board.
F62
Missing zero-cross signal.
F90
- Press CLEAR key.
- If CLEAR key does not eliminate problem, turn off power for 30 seconds,
then turn on power.
- Check wiring of Lock Motor, Lock Switch and Door Switch circuits.
- Unplug the lock motor from the board and apply power (L1) directly
Door motor mechanism failure. The to the Lock Motor. If the motor does not rotate, replace Lock Motor
controller does not see the motor Assembly.
rotating.
- Check Lock Switch for proper operation (do they open and close, check
with ohmmeter). The Lock Motor may be powered as in above step
to open and close Lock Switch. If the Lock Switch is defective, replace
Motor Lock Assembly.
- If all above steps fail to correct situation, replace the EOC- Display Board
or the EOC- Relay Board in the event of a motor that does not rotate.
5
OVEN BLOCK DIAGRAM FOR MODEL
Switch Door 1
Switch Motor Door 1
Switch Motor Door 2
Switch Door 2
Oven Probe 1
Oven Probe 2
Keyboard
Pin 1 = Switch Motor 1
pin 2 = Not Used
pin 3 = Switch Door 1
pin 4 = Not Used
pin 5 = return Patch Switch
pin 1 =
pin 2 =
pin 3 =
pin 4 =
pin 5 =
pin 6 =
pin 7 =
pin 8 =
pin 1 =
pin 2 =
pin 3 =
pin 4 =
pin 5 =
pin 6 =
pin 7 =
pin 8 =
pin 9 =
Broil Element 2
Bake Element 2
Not Used
DLB 2
Conv Fan 2
Latch Motor 2
Oven Ligth 2
Not Used
Convection Element 1
Cool Fan 1 Hi
Cool Fan 1 Lo
Cool Fan 2 Lo
Cool Fan2 Hi
Convection Element 2
PWM relay
Oven Light 1
Latch Motor 1
Convection fan 1
DLB 1
Not Used
Bake Element1
Broil Element 1
Not Used
Wiggler
J2
J7
J6
J3
Fastons
J4
Conv Fan(s) 1
Neutral
L2 OUT
L2 IN
L1
BROIL1
BAKE 1
L1
Conv element 1
L1
Conv element 2
Motor Door Latch 1
Oven Light 1
Cool Fan 1 Low
CoolFan 1 Hi
P13/P19 Aux 1 = K19 Relay
P15 = L1 IN
P16 Aux 2 = K20 Relay
BROIL 2
BAKE 2
L2 OUT
L2 IN
L1
P4/P18 = K2 DLB IN 2 Relay
P6 = L1 IN
P8 = K4 Relay
P10 = K6 Relay
P12 = Not Used
pin 5 = K10 Relay
Motor Door Latch 2
Conv Fan(s) 2
Neutral
pin 6 = K12 Relay
Cool Fan 2 Hi
Oven Light 2
Cool Fan 2 Low
pin 1 = Neutral IN
pin 2 = Not Used
pin 3 = L1 IN
pin 4 = Not Used
pin 7 = K13 Relay
pin 8 = K15 Relay
L1
P2 = K2 DLB OUT 2 Relay
pin 5 = K11 Relay
pin 6 = K14 Relay
pin 7 = K16 Relay
pin 8 = K18 Relay
pin 9 = Not Used
pin 10 = Not Used
pin 4 = K9 Relay
pin 1 = Neutral IN
pin 2 = Not Used
pin 3 = L1 IN
P5 = L1 IN
P7 = K3 Relay
P9 = K5 Relay
P11 = Not Used
P1 = K1 DLB OUT 1 Relay
P3/P17 =K1 DLB IN 1 Relay
ES61x Relay and Power Board 3164439xx
Not Used
Convection Element 1
Cool Fan 1 Hi
Cool Fan 1 Lo
Cool Fan 2 Lo
Cool Fan 2 Hi
Convection Element 2
PWM Relay
pin 1 =
pin 2 =
pin 3 =
pin 4 =
pin 5 =
pin 6 =
pin 7 =
Ground
V_LED 8 V DC
V_UR 16 V DC
Not Used
Zero Cross
J5
pin 1 =
pin 2 =
pin 3 =
pin 4 =
pin 5 =
pin 6 =
pin 7 =
pin 8 =
Broil Element 2
Bake Element 2
Not Used
DLB 2
Conv Fan 2
Latch Motor 2
Oven Light 2
pin 1 =
pin 2=
pin 3 =
pin 4 =
pin 5 =
J3
pin 1 =
pin 2 =
pin 3 =
pin 4 =
pin 5 =
pin 6 =
pin 7 =
pin 1 = Ground
pin 2 = V_LED 8 V DC
pin 3 = V_UR 16 V DC
pin 4 = Not Used
pin 5 = Zero Cross
pin 1 = Oven Light 1
pin 2 = Latch Motor 1
pin 3 = Convection Fan 1
pin 4 = DLB 1
pin 5 = Not Used
pin 6 = Bake Element 1
pin 7 = Broil Element 1
pin 8 = Not Used
pin 9 = Wiggler
Relay control: 5V out = close relay 0V out: open relay
J5
pin 1 =
pin 2 =
pin 3 =
pin 4=
pin 5 =
J4
P2
ES61x Display Board 3164438xx
Pin 1 = Switch Motor Door 2
pin 2 = Not Used
pin 3 = Switch Door 2
pin 4 = Not Used
pin 5 = Not used
pin 6 = return Patch Switch
J2
P6
17 pins header
pin 1 = Probe Oven 1
pin 2 = Probe Oven 1
pin 3 = Probe Oven 2
pin 4 = Probe Oven 2
P8 Oven 1
Note:
1) Oven 1 - upper oven
Oven 2 - lower oven
2) PRO 30" model has 2 convection fans
pin 9 = K17 Relay
See note 2
See note 2
6
Fastons
Fastons
P10 Oven 2
NOTES
7
NOTES
8
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