Wolf 24" E Series Oven Troubleshooting Guides
TROUBLESHOOTING
This section of the manual is divided into five troubleshooting guides and categories.
Table of Contents
- Malfunctions with Error Codes
- Malfunctions/Messages Without Error Codes
- Malfunctions Without Fault Displays/Messages
- Diagnostic Mode (History and Counters)
NOTES:
- If the appliance has an error, that error code appears on the display when it happens without entering diagnostic mode.
- Though not listed, the cause of all error codes could be the result of other factors such as:
- Faulty wiring e.g. through a short circuit, break, loose contact, earth contact, etc.
- Moisture, dirt, component failure, electromagnetic interference or other impacts to the electronics.
- Before continuing, please take note of the WARNINGS and CAUTIONS below.
WARNING
TO AVOID ELECTRIC SHOCK, NEVER TOUCH ANY PART OF THE ELECTRICAL CIRCUIT WITH HANDS OR UN-INSULATED TOOLS WHILE THE POWER IS CONNECTED.
FAILURE TO INSTALL THE MOUNTING SCREWS CAN ALLOW THE OVEN TO TIP FORWARD DURING USE!
CAUTION
Be careful when handling sheet metal parts - Edges may be sharp.
Malfunctions with Error Codes
| Error Code | Message | Diagnostic Of Error (Through Microcontroller) | Possible Cause (Ranked by Frequency) |
|---|---|---|---|
| E01 | F5 | EEPROM Read error (after 50 tries) | 1. Problems with relay board, caused by moisture or Electromagnetic Interference (EMI) influences. |
| E02 | F5 | EEPROM Write error (after 10 tries) | 1. Problems with relay board, caused by moisture or EMI influences. |
| E03 | F5 | FLASH Incorrect process data (device ID number) | 1. Loaded incorrect process data. Cycle power to the unit and then clear the error. If error returns replace the relay board. |
| E04 | F5 | FLASH Incorrect process data (checksum) | 1. Process data error. Cycle power to the unit and then clear the error. If error returns replace the relay board. |
| E05 | F5 | FLASH Incorrect firmware (checksum) | 1. Firmware error. Cycle power to the unit and then clear the error. If error returns replace the relay board. |
| E06 | -- | SOFTWARE Watchdog reset | 1. Relay board faulty. |
| E09 | F0 | Cooking Space Temperature Sensor with too low of a resistance (temp. < ca. -4°F/-20°C) | 1. Short circuit in Temperature Sensor or in its wiring. |
| E10 | F0 | Cooking space temperature Sensor with too high of a resistance (temp. >ca. 1472°F/800°C) | 1. Break or loose contact in Temperature Sensor or in its wiring. |
| E11 | F0 | Cooking space temperature Reference with too low of a resistance | 1. Relay board faulty. |
| E12 | F0 | Cooking space temperature Reference with too high of a resistance | 1. Relay board faulty. |
| E13 | -- | Cooking space temperature > 662°F/350°C during Off / Standby Mode | 1. Electromagnetic disturbances - Replace relay board. 2. Heating and main relay short circuited - Replace relay board. |
| E17 | F1 | Food temperature Food probe with too low of a resistance (temp. > ca. 446°F/230°C) | 1. Short circuit in food probe or in its wiring. 2. Food probe not inserted into food, tip too hot. 3. Moisture in food probe socket. |
| E18 | F1 | Food temperature Food probe with too high of a resistance (temp. < ca. -20°C) | 1. Break or loose contact in food probe or in its wiring. |
| E25 | F3 | Climate temperature Sensor with too low of a resistance (temp. > ca. 509°F/265°C) | 1. Short circuit in climate sensor or in its wiring. 2. Exhaust duct blocked. 3. Duct between cooking space and sensor blocked. |
| E26 | F3 | Climate temperature Sensor with too high of a resistance (temp. < ca. 28°F/-2°C) | 1. Break or loose contact in climate sensor or in its wiring. 2. Exhaust duct blocked. 3. Duct between cooking space and sensor blocked. |
| E27 | F17 | Climate temperature Temperature > 392°F/200°C for 60 seconds | 1. Hairline crack in climate sensor. |
| E33 | F12 | Relay board temperature Sensor with too low of a resistance (temp. > ca. 392°F/200°C) | 1. Relay board faulty. |
| E34 | F12 | Relay board temperature Sensor with too high of a resistance (temp. < ca. 3°F/-16°C) | 1. Relay board faulty. |
| E35 | F13 | Relay board temperature Temperature > 185°F/85°C for 60 seconds | 1. Electronics area temperature too high (caused by second appliance?). 2. Exhaust fan failure. 3. Power failure during baking process. |
| E36 | F14 | Control Board temperature Sensor with too low of a resistance (temp. > ca. 200°C) | 1. Control board faulty. |
| E37 | F14 | Control Board temperature Sensor with too high of a resistance (temp. < ca. 3°F/-16°C) | 1. Control board faulty. |
| E38 | F15 | Control Board temperature Temperature > 185°F/85°C for 120 seconds | 1. Electronics area temperature too high (caused by second appliance?). 2. Exhaust fan failure. 3. Power failure during baking process. |
| E46 | -- | Pyrolysis Elevated cavity temperature in phase 2 | In Pyrolysis operation at the end of phase 2 the set-point temperature was not reached in order to change to phase 3. Phase 2 was extended automatically which leads to a shorter phase 3. 1. Faulty thermostat wiring. 2. Door lock microswitches loose. 3. Undervoltage in power supply (no defect, but may lead to a poor pyrolytic cleaning effect). 4. Interrupt during Pyrolysis (no fault, but may lead to a poor pyrolytic cleaning effect). |
| E48 | -- | Pyrolysis Elevated cavity temperature in phase 2 | The cavity temperature increased in phase 2 of the Pyrolysis operation. |
| E49 | F10 | Control Board Button(s) closed for min. 60 seconds | 1. Button is mechanically blocked or jammed. 2. Moisture on the control board. |
| E50 | F10 | Control Board Moisture sensor closed for min. 20 seconds | 1. Moisture on the control board. |
| E51 | F6 | Relay Board Neutral wire to main relay (N') records error | 1. Quit error in the case of appliances with K3.20398-0 or K3.20398-1 software. Message probably caused by software error. 2. Wrong connection of neutral and pole conductor in case of 1-phase connection (Applies for appliances with relay board with version smaller -2). 3. Relay board faulty. |
| E54 | F25 | Supplementary Board Communication error NOTE: The Supplementary board plugs directly into the relay board | 1. Check connection (including cable) between Supplementary Board and relay board. |
| E55 | -- | Supplementary Board Hardware error | 1. Supplementary Board faulty. Replace Relay board. |
| E56 | -- | Supplementary Board Software incompatibly | 1. Replace relay board (to update firmware). |
| E57 | U0 | Electrical connection Voltage on Neutral > 340V | 1. Energized wire connected to neutral terminal. 2. Neutral wire has a break in the house wiring. 3. Electrical calibration error (see error code E63). |
| E58 | U1 | Electrical connection No voltage on L2 | 1. No wire connected to L2 terminal, or no voltage on L2. 2. Circuit breaker or fuse in house wiring tripped off. 3. L1 and L2 are the same supply leg. 4. Relay board faulty |
| E59 | U0 | Electrical connection Voltage > 270VAC for 1 second | 1. Overvoltage in power supply. 2. Neutral wire break in the house wiring. 3. Electrical calibration error (see error code E63). |
| E61 | U2 | Electrical connection Voltage < 170VAC for 1 minute | 1. Undervoltage in electrical power supply. 2. Electrical calibration error (see error code E63). |
| E62 | U3 | Electrical connection Voltage < 150VAC | 1. Undervoltage in electrical power supply. 2. Electrical calibration error (see error code E63). |
| E63 | -- | Electrical calibration | 1. No calibration of electrical voltage. Replace relay board. |
| E81 | -- | Relay calibration | 1. No calibration of relay. Replace relay board. |
| E85 | F4 | Slide motor Motor current shows short circuit | 1. Short circuit in slide motor or in its wiring. |
| E86 | F4 | Slide motor Motor current shows break | 1. Break or loose contact in slide motor or in its wiring. |
| E87 | F4 | Exhaust air slide valve Path of slide valve restricted (motor current error during slide valve test) | 1. Exhaust slide valve stuck with grease deposits. 2. Motor or slide valve jammed (mechanical defect). 3. Short circuit in slide motor or in its wiring. |
| E88 | -- | Exhaust air slide valve Path of slide valve restricted during normal operation (motor current shows current reduction) | 1. Exhaust slide valve stuck with grease deposits. 2. Motor or slide valve jammed (mechanical defect). |
Malfunctions/Messages Without Error Codes
| Display Text | Possible Cause (Ranked by Frequency) |
|---|---|
| Please close door | 1. Door is open. 2. Magnet in door is not in correct position or has come away. 3. Reed switch or its holder not mounted correctly. 4. Door does not close properly too (e.g. because of faulty door seal). 5. Break in door contact or in its wiring. |
| Insert food probe | 1. Food probe is not plugged in. 2. Loose contact in food probe socket. 3. Wiring of food probe socket is faulty. |
| Remove food probe | 1. Food probe is plugged in. 2. Food probe socket or its wiring is defective. |
| *** Demo-Modus *** | 1. Demo-Modus (mode used for demonstration purposes) is on. |
| Diagnostic mode is on. | 1. Diagnostic mode is on. |
Malfunctions Without Fault Displays/Messages
| Malfunction | Possible Cause (Ranked by Frequency) |
|---|---|
| Heating element(s) not heating. | 1. Heating element(s) or the corresponding wiring is faulty. 2. Demo-Modus is activated. |
| Strange display or illegible characters appear in the text display. | 1. Moisture in LCD due to steam penetrating panel area. 2. Loose or faulty plug and socket connection or ribbon cable. 3. Faulty LCD (loose connector). 4. Door lock microswitches loose. |
| Heavily build-up of condensate externally or in condensate conduit | 1. Door not closed firmly enough. 2. Door seal fitted incorrectly or damaged. 3. Door hinge faulty or damaged. Check closing force. |
| A Shut-off time is set that requires a Delayed Start, but the Delayed Start does not begin if the food probe is unplugged and plugged back in. | 1. Immediate remedy: Cancel the operation and reset selection. 2. If relay board software is K3.20398-1, replace relay board with software version 2 or higher. |
| Pyrolysis: Poor cleaning results | 1. Faulty or dirty door seal. 2. Build-up of heat in the back panel of the unit around the thermostats. 3. Faulty thermostat wiring. |
| Delayed start longer then 2 hours shuts off after Delayed start is completed. | 1. Firmware error. Replace Relay board. |
Diagnostic Mode
This mode shows only error history and different time information. Error codes appear on the display when the error occurs without enter diagnostic mode.
Requirements:
In order to turn the diagnostic mode on / off, the appliance must be OFF (all displays - with the exception of the time display - should be dark) or in the error mode (error message is displayed).
- To Turn ON: Press and hold the "LIGHT" + "OK" buttons for ten (10) seconds. «Diagnostic mode» «Error history» appears in the display.
- Menu Navigation: Rotate the "OK" knob to move up and down the menu level. Press the “OK” knob to move from Menu Level 1 to Menu Level 2 or backward.
- To Turn OFF: Press the "Off" button. Alternatively, the diagnostic mode turns off automatically after 1 hour.
MENU STRUCTURE
| Menu Level 1 | Menu Level 2 | Description |
|---|---|---|
| Diagnostic mode Error history | Error history | No history entries |
| Error history is empty. | ||
| Error history |
ww: Entry number. xxx: Error code of malfunction that has occurred (e.g. E03). yyy: Error message of malfunction that has occurred (e.g. F05, U01 or H11). zzzzzhzz: Total operating hours at the time the malfunction occurred. |
|
| Diagnostic mode Error counter | Error counter | All error counters show zero. |
| Error counters show zero | ||
| Error counters |
ww: Entry number. xxx: Error code (e.g. E03) yyy: Error message (e.g. F05 or U01) zzz: Number of events |
|
| Diagnostic mode Clear history/counter | Clear history/counter no | Do not clear error history / counters. |
| Clear history/counter yes | Clear error history / counters. | |
| Diagnostic mode Operating hours counter | Operating hours counter |
xxxxh: Total number of operating hours (rounded) XXXXX: |
| Diagnostic mode Event counter | Event counter Hardware reset |
XXXXX: Number of resets |
| Event counter Descale |
XXXXX: Number of times descaling performed |
|
| Diagnostic mode Version numbers | Version numbers Software |
XX.XXXX: Software number xx.xxxx-yy: Software version |
| Version numbers Process |
XX.XXXX: Process number xx.xxxx-yy: Process version |
|
| Version numbers Hardware |
XX.XXXX: Hardware number yy: Hardware version |
