Electrolux EW30IS80RS Wiring Reference

NOTICE: This service data sheet is intended for use by persons having electrical and me-

chanical 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.

IMPORTANT NOTE: This unit includes an EOC (electronic oven control). This board is not 

field-repairable.

To avoid the possibility of personal injury and/or property damage, it is important that safe ser-

vicing 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 not comply 

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 reas-

sembled.

• 

All panels are properly and securely reassembled.

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.
Failure Code/ Condition/Cause

Suggested Corrective Action

F10

Control has sensed a potential runaway oven 

condition. Control may have shorted relay, RTD 

sensor probe may have a gone bad.

Check RTD sensor probe and replace if necessary. If oven is overheating, disconnect power. If oven continues to overheat when power is 

reapplied, replace relay board and/or display board.

F11

Shorted Key: a key has been detected as pressed 

for a long period and will be considered a shorted 

key alarm and will terminate all oven activity.

Press any key to clear the error.
If fault returns, replace the keyboard (touch panel).
If the problem persists, replace the display board.

F13

Control's internal checksum may have become 

corrupted.

Press any key to clear the error.
Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up, replace display board.

F14

Misconnected keyboard cable

Verify connection between display board and touch panel (2 ribbon cables). Make sure the cables are well connected at both ends.
If the cables are good, replace the touch panel.
If the problem persists, replace the display board.

F15

Controller self check failed.

Verify if relay board receives 120VAC between J4 pin 1 and 3. 
Verify the wiring between J2 on the relay board and P16 on the display board.
If wiring and 120VAC supply is good replace the display board.
If problem persists replace the relay board.

F20

The oven controller has detected a problem with 

the communication link to the surface element 

controller (ESEC)

1. 

Is the ESEC User Interface Board powered on (are the surface element displays showing something)? If not, that is the reason why the 

oven control cannot communicate with it (ESEC has no power). Check the 120VAC voltage going in to the ESEC power supply board 

located in the front console (connector P1) and the low voltage supply going from the power supply board (connector P2) to the ESEC 

UIB (connector P7).

2. 

Check connections between connector P2 on the oven controller and P9 on the ESEC User Interface Board. This is the communication 

link. Verify for continuity. Refer to the wiring diagram.

3. 

If the above steps failed to solve the problem, replace the ESEC UIB board.

4. 

If problem persists replace the oven controller.

F23

The controller failed to communicate with the oven 

lights control board.

Verify wiring between P2 on the display board and P2 on the oven lights control board.
If wiring is good, replace oven lights board.
If the problem persists, replace the display board.

F30  Open RTD sensor probe/ wiring problem.

Note: EOC may initially display an "F10", thinking a runaway 

condition exists.

Check wiring in probe circuit for possible open condition.

Check RTD resistance at room temperature (compare to probe resistance chart). If resistance does not match the chart, replace the RTD sensor probe.

F31  Shorted RTD sensor probe / wiring problem.

Let the oven cool down and restart the function.
If the problem persists, replace the display board.

Note: F30 or F31 is displayed when oven is in active mode or an attempt to enter an active mode is made.
F43

The cooling fan speed, as read by the tachometer 

input of the EOC-display board, is abnormally 

too slow.

Determine first if the problem appears to be caused by a cooling fan not turning or turning slowly or by a problem with the sensing of the fan 

speed. Start a Bake and check during the first 15 seconds if the fan is turning (should feel air flowing through the vent above the upper oven door).
If the fan does not appear to be turning or turn slowly check the 120VAC at the fan. If 120VAC is present at the fan motor but the fan does not 

turn replace the fan motor. If 120VAC is not present at the fan motor when a Bake is started check the connection to the relay board (J3 pin 

7) and Neutral: is there 120VAC on J3 pin 7? Does it reach the fan motor? Is the other terminal of the fan motor connected to Neutral? If the 

harness or relay board are faulty replace them.
If the fan appears to be normally turning but an F43 error code is generated, it means there is a problem with the reading of the fan speed 

sensor. Make sure the connection of the fan speed sensor is properly made (refer to wiring diagram), between the sensor on the fan and the 

EOC- display board.
For trouble-shooting purposes, it is possible to enter a test mode that will indicate on the display the reading of the fan speed in RPM: to enter 

the test mode, power-up the unit and within 30 seconds press and hold the upper oven Bake and Broil keys for 3 seconds (until you see all 

segments in the screen illuminated). Once in the test mode, pressing the upper oven Light key once will display the fan speed in RPM. In normal 

client mode the F43 error is generated for a fan speed below approximately 700 RPM.

F44

The cooling fan speed, as read by the 

tachometer input of the EOC- display board, is 

abnormally too fast.

Inspect the cooling fan. Does it appear to be turning normally (air flow, noise)? Verify the fan blade is well assembled.
Verify there is nothing blocking the air flow of the fan (that could make the fan turn faster).
Check the 120VAC voltage on the fan. A voltage higher than 120VAC + 10% could make it go too fast.
Make sure the connection of the fan speed sensor is properly made (refer to wiring diagram), between the sensor on the fan and the EOC- 

display board.
For trouble-shooting purposes, it is possible to enter a test mode that will indicate on the display the reading of the fan speed in RPM: to enter the test 

mode, power-up the unit and within 30 seconds press and hold the upper oven Bake and Broil keys for 3 seconds (until you see all segments in the screen 

illuminated). Once in the test mode, pressing the upper oven Light key once will display the fan speed in RPM. In normal client mode the F44 error is 

generated for a fan speed above approximately 2500 RPM.
If problem persists replace both the fan+sensor assembly and the EOC- display board.

F90

Door motor mechanism failure. 

Press any key to clear the error.
If it does not eliminate the 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 to the Lock Motor. If the motor does not rotate, replace 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 display board and/or the relay board in the event of a motor that does not rotate.
If all the above steps fail to correct the situation, replace the display board in the event of a motor that rotates endlessly.

CIRCUIT ANALYSIS MATRIX

On Relay Board

TRIAC Board

On Display 

Board

ELEMENTS

Door 

Motor

J3-5

DLB

L2 out

P1

Cooling 

Fan 

Low

J3-7

Cooling 

Fan 

High

J3-8

Door Switch

P10-3

Bake

P9

Broil

P7

Conv.

P11

Conv Fan

P2-7

 Oven 

Light

P2-1

Bake

X

X

X*

X

X

X

X*

Keep Warm

X

X

X

Broil

X

X

X

X

Conv. Bake

X

X

X

X

X

X

X**

Conv. Roast

X

X

X

X

X

X

X

Conv. Broil

X

X

X

X

X

Clean

X

X

X

X

X

Locking

X

Locked
Unlocking

X

Unlocked
Light

X

Door Open

X

Door Closed

X

Bread Proof

X

X

X

Relay will operate in this condition only

*Convection element and fan are used for the first rise in 

temperature

1000 ± 4.0
1091 ± 5.3
1453 ± 8.9

1654 ± 10.8
1852 ± 13.5
2047 ± 15.8
2237 ± 18.5

2697 ±  24.4

Open  circuit/infinite  resistance

32 ± 1.9 (0 ± 1.0)

75 ± 2.5 (24 ± 1.3)

250 ± 4.4 (121 ± 2.4)
350 ± 5.4 (177 ± 3.0)
450 ± 6.9 (232 ± 3.8)
550 ± 8.2 (288 ± 4.5)
650 ± 9.6 (343 ± 5.3)

900 ± 13.6 (482 ±7.5)

Probe  circuit  to  case  ground

Set the electronic oven control for normal baking at 350°F. Allow oven to preheat to set 

temperature. Obtain an average oven temperature after a minimum of five cycles. Press the 

STOP key to end the Bake mode.

1. 

Press USER PREFERENCES until you get the UPO menu page. 

2. 

To select the oven you want to adjust, press USER PREFERENCES again to toggle 

between the upper and lower display.

3. 

Enter the temperature by pressing the HI or LO keys. The temperature can only be 

adjusted by ±35°F (°C).

4. 

Press START to accept the changes and go back to USER PREFERENCES menu 

display.

Note: Changing calibration affects all baking modes. The adjustments made will not change 

the self-cleaning temperature.

The EOC controls the speed of the cooling fan. The cooling fan is activated at low speed 

during any cooking function and will remain on until the oven is cooled down. The high speed 

is activated during the broil (with open door) and during clean cycles only when the tempera-

ture is above apporximately 575°F/302°C.

LOWER 

OVEN 

ANALYSIS 

MATRIX

On Relay Board

ELEMENTS

DLB L2 

out (P2)

Bake (P10)

Bake

X

X

Keep Warm

X

X

MEAT PROBE TEMPERATURE VS RESISTANCE TABLE

Temperature

Probe Resistance

77 °F / 25°C

50.020 Kohm +/- 6%

122 °F / 50°C

18.020 Kohm +/- 5%

176 °F / 80°C

6.290 Kohm +/- 5%

212 °F / 100°C

3.400 Kohm +/- 5%