Electrolux EW30IS80RS User Manual

IMPORTANT

DO NOT REMOVE THIS BAG

OR DESTROY THE CONTENTS

WIRING DIAGRAMS AND SERVICE

INFORMATION ENCLOSED

REPLACE CONTENTS IN BAG

Resistance (ohms)

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

RTD SCALE

Temperature °F (°C)

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

SERVICE DATA SHEET

Appliance with ES630 Electronic Oven Control

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

eld-repairable.

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 specied 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.

CIRCUIT ANALYSIS MATRIX

On Relay Board TRIAC Board On Display

ELEMENTS

Door

Motor

BakeP9BroilP7Conv.

P11

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

L2 out

J3-5

DLB

Cooling

Cooling Fan Low

J3-7

*Convection element and fan are used for the rst rise in

Fan High J3-8

Conv Fan

P2-7

temperature

807880703 EN (Rev A 15/02)

Oven Calibration

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 ve cycles. Press the

STOP key to end the Bake mode.

Temperature Adjustment

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.

2-Speed Cooling Fan

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.

Oven

Light P2-1

Board

Door Switch

P10-3

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%

LOWER

OVEN

ANALYSIS

MATRIX

Bake X X

Keep Warm X X

On Relay Board

ELEMENTS DLB L2

Bake (P10)

out (P2)

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.

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.

F13 Control's internal checksum may have become

corrupted.

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.

F15 Controller self check failed. Verify if relay board receives 120VAC between J4 pin 1 and 3.

F20 The oven controller has detected a problem with

the communication link to the surface element

controller (ESEC)

F23 The controller failed to communicate with the oven

lights control board.

F30 Open RTD sensor probe/ wiring problem. Note: EOC may initially display an "F10", thinking a runaway

condition exists.

F31 Shorted RTD sensor probe / wiring problem. Let the oven cool down and restart the function.

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.

F44 The cooling fan speed, as read by the

tachometer input of the EOC- display board, is abnormally too fast.

F90 Door motor mechanism failure. Press any key to clear the error.

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.

Press any key to clear the error.

If fault returns, replace the keyboard (touch panel).

If the problem persists, replace the display board.

Press any key to clear the error.

Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up, replace display board.

If the cables are good, replace the touch panel.

If the problem persists, replace the display board.

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.

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.

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.

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.

If the problem persists, replace the display board.

Determine rst 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 rst 15 seconds if the fan is turning (should feel air owing 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.

Inspect the cooling fan. Does it appear to be turning normally (air ow, noise)? Verify the fan blade is well assembled.

Verify there is nothing blocking the air ow 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 EOCdisplay 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.

f 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.

NEUTRAL

COOLING FAN - HIGH

CONV FAN

NEUTRAL

RELAY BOARD

P8 P10P12 P2

LOWER OVEN

BAKE

P18

NEUTRAL

DLB IN

DLB OUT

BLB

J7 - HEAT CONTROL UPPER OVEN CONNECTS TO CONTROL P11

J5 - HEAT CONTROL LOWER OVEN CONNECTS TO CONTROL P9

BROIL

UPPER OVEN

BAKE

OVEN CONTROL

P9 OUT CONNECTS TO J5

CONV

P11P9

CONV

COMMON DOOR SWITCH RACK SENSOR DEFEAT MDL

P10 SWITCH 1 OUT

L2 IN

P17

DLB

CONNECTS TO CONTROL P16

L2 OUT

COOLING FAN - LOW

MDL

J2 DC POWER

GROUND VLED (~+7 VDC) VUR (~+15 VDC)

ZERO CROSS

P19

P13

P6 PROGRAMMING HEADER

CONNECTS TO CONTROL P13

P15

P18 MEAT PROBE

J6 CONTROLS FAN,

NIGHT LIGHT, AUX OUTUT

P16

P13 AUX OUT

CONNECTS TO J6

P2 LIN COMM 1

CONNECTS TO TRIAC

P8 BACKLIGHT POWER CONNECTS

TO POWER SUPPLY

P3 TOUCH KEY INPUTS

P7 EXT LEDS/KEY, RING LIGHTS, PANEL BACKLIGHT CONTROL/POWER

P11 LOWER OVEN OUT CONNECTS TO J7

P16 POWER IN CONNECTS TO J2

P20 LOWER OVEN TEMP PROBE

P1 TEMP PROBE

USER INTERFACE BOARD (UIB) TRIAC BOARD

OVEN LAMP

P10

P9 CONNECTS TO

CONTROL P2 AND TRIAC

J2 J4 P9

P6P5

P7 CONNECTS TO

POWER SUPPLY

P1 CONNECTS TO CONTROL P2

PROGRAMMING HEADER

P6P1

+ 2 hidden pages