Electrolux E30DF74TPS Technical Bulletin

SERVICE DATA SHEET
Dual Fuel Range with ES 570 Electronic Oven Control
ELECTRONIC OVEN CONTROL (EOC) FAULT CODE DESCRIPTIONS
Failure Code
SERVICE TECHNICIAN REESTABLISH ALL SAFETY GROUNDS PRIOR
TO COMPLETION OF SERVICE. FAILURE TO DO SO WILL CREATE A
POTENTIAL HAZARD.
A 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.
Likely Failure Condition/Cause
Front Panel LED
1
2
3
4
X
6. Prior to returning the product to service, ensure that:
5
6
7
X
• All electric connections are correct and secure.
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
examples, but without limitation, of such practices,
• All electrical leads are properly dressed and secured away from sharp edges,
high-temperature components, and moving parts.
• All non-insulated electrical terminals, connectors, heaters, etc. are adequately
spaced away from all metal parts and panels.
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.
• All safety grounds (both internal and external) are correctly and securely
reassembled.
2. Before servicing or moving an appliance, remove power cord from electric
outlet, trip circuit breaker to OFF, or remove fuse and turn off gas supply.
• All panels are properly and securely reassembled.
Set the electronic oven control for normal baking at 350°F. Obtain an average
oven temperature after a minimum of 5 cycles. The oven calibration can not be
modified.
4. USE ONLY REPLACEMENT PARTS CATALOGED 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
1
2
3
4
5
X
6
7
Front Panel LED
1
2
3
4
5
6
7
2
3
4
X
Temperature Offset Adjustment
See Owner’s Manual.
5
2
3
4
5
X
6
7
6
7
Electronic oven control relay board
Electronic Display Board
To display board
1
1P8
P9
To potentiometer selector and
temperature potentiometer
D1
D2
D3
D4
P6
K3
K4
K5
1
P14
MDL
K11
P16
Conv.
K1 K2
Broil
P1
P4
Bake
P3
P2
D5
Conv.
DLB
conv.
DLB
bake &
broil
K10
D6
This display board serves for Freestanding Range
D1- Bake Mode Indicator Light
D2- Convection Bake Mode Indicator Light
D3- Convection Roast Mode Indicator Light
D4- Broil Mode Indicator Light
D5- Clean Mode Indicator Light
D6- Lock Mode Indicator Light
D7- Racks Indicator Light
P15
Goes to P8 oven control.
K6
K7
P10 P11 P12 P13
P5
Lamp switch
Oven probe
Oven probe
MDL switch
Door switch
Lamp switch
120V to cooling fan
Convection fan
Convection
Element
L2 in (convection)
L1
N
120V to MDL
L2 out (convection)
Broil
L2 in
Bake
2
3
4
X
X
X
L2 out (bake & broil)
Incorrect EEPROM Checksum,
control internal checksum
may have been corrupted.
Disconnect power, wait 30 seconds and reapply power. If fault returns upon
power-up, replace control board.
Open RTD sensor probe / wiring
problem.
- Check wiring in probe circuit for possible open condition.
- Check RTD resistance at roon temperature (compare to probe resistance
chart). If resistance does not match the chart, replace RTD sensor probe.
- Let the oven cool down and restart the function.
- If problem persist, replace control board.
Shorted RTD sensor probe / wiring
problem.
Door motor mechanism failure.
5
6
- Turn off power for 30 seconds, then turn on power.
- Check wiring of lock motor, lock switch circuits.
- Unplug the lock motor from the board and apply power (L1) directly to the
lock motor. If the motor does not rotate, replace the lock motor assembly.
- 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 control board.
7
LED Legend:
1 - Bake
2 - Convection Bake
3 - Convection Roast
4 - Broil
5 - Clean
6 - Lock
7 - Remove racks
Circuit
Analysis
Matrix
D7
Replace the control board.
X
Front Panel LED
1
Incorrect Micro ID, controller self
check failed.
X
Front Panel LED
1
Check RTD sensor probe and replace if necessary. If oven is overheating,
disconnect power. If oven continues to overheat when power is reapplied,
replace control board.
X
Front Panel LED
1
Control has sensed a potential
runaway oven condition.
Control may have shorted relay,
RTD sensor probe may have gone
bad.
X
X
Oven Calibration
3. Never interfere with the proper installation of any safety device.
Front Panel LED
Suggested Corrective Action
DLB1 L2
out P10
DLB2 L2
out P12
Bake
P2
Broil
P3
Conv
P4
Door
Motor P3
Conv.
Fan P15
Door Switch
P5-6 & P5-5
Bake
X
X
X
X
X
X
X
Convection Bake
X
X
X
X
X
X
X
Convection Roast
X
X
X
X
X
X
X
Broil
X
Self-Clean
X
X
X
X
X
X
X
X
Locking
X*
Unlocking
X
Door Open
Door Closed
IMPORTANT
DO NOT REMOVE THIS BAG
OR DESTROY THE CONTENTS
WIRING DIAGRAMS AND SERVICE
INFORMATION ENCLOSED
REPLACE CONTENTS IN BAG
p/n 809008405 Rev A (1701) EN
RTD SCALE
Resistance Temperature Detector
Temperature °F (°C)
Resistance (ohms)
32 ± 1.9 (0 ± 1.0)
1000 ± 4.0
75 ± 2.5 (24 ± 1.3)
1091 ± 5.3
250 ± 4.4 (121 ± 2.4)
1453 ± 8.9
350 ± 5.4 (177 ± 3.0)
1654 ± 10.8
450 ± 6.9 (232 ± 3.8)
1852 ± 13.5
550 ± 8.2 (288 ± 4.5)
2047 ± 15.8
650 ± 9.6 (343 ± 5.3)
2237 ± 18.5
900 ± 13.6 (482 ±7.5)
2697 ± 24.4
Probe circuit to case ground
Open circuit/infinite resistance
Cooling
Fan
Sp. P5-3
Notes: X*= Motor latch will only lock when the tack switch is closed (rack removed).
Relay will operate in this condition only.
X
General Troubleshooting Schematic
General Troubleshooting Diagram
TAN/BRUN CLAIR