Skip to main content
Wolf Oven Error Codes
381 error codes for Wolf oven models. Each links to the full diagnostic procedure from the service manual.
CodeDescription
0021Bake element drive shorted on upper/single oven relay board.0022Bake element drive shorted on lower oven relay board.0121Right convection element drive shorted on upper/single oven relay board.0122Right convection element drive shorted on lower oven relay board.0221Bake element DLB shorted on upper/single oven relay board.0222Bake element DLB shorted on lower oven relay board.0321Broil element drive shorted on upper/single oven relay board.0322Broil element drive shorted on lower oven relay board.0421Left convection element drive shorted on upper/single oven relay board.0422Left convection element drive shorted on lower oven relay board.0521Broil element DLB shorted on upper/single oven relay board.0522Broil element DLB shorted on lower oven relay board.0620Auxiliary DLB shorted on relay board.0731Oven light drive shorted on upper/single oven relay board.0732Oven light drive shorted on lower oven relay board.0821MDL drive shorted on upper/single oven relay board.0822MDL drive shorted on lower oven relay board.0920Right convection fan drive shorted on upper/single oven relay board.0A20Left convection fan drive shorted on upper/single oven relay board.0B20Cooling fan drive shorted on upper/single oven relay board.MyPros+ Max
Get the full diagnostic procedure for any Wolf oven error code.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts
- Verified part numbers when replacement is required
Get started
$29/month · Cancel anytime · Or $9.95 3-day pass
0C20Right convection fan drive shorted on lower oven relay board.0D20Left convection fan drive shorted on lower oven relay board.0E20Cooling fan drive shorted on lower oven relay board.1021Bake element drive open on upper/single oven relay board.1022Bake element drive open on lower oven relay board.1121Right convection element drive open on upper/single oven relay board.1122Right convection element drive open on lower oven relay board.1221Bake element both DLBs open on upper/single oven relay board.1222Bake element both DLBs open on lower oven relay board.1231Bake element single DLB open on upper/single oven relay board.1232Bake element single DLB open on lower oven relay board.1321Broil element drive open on upper/single oven relay board.1322Broil element drive open on lower oven relay board.1421Left convection element drive open on upper/single oven relay board.1422Left convection element drive open on lower oven relay board.1521Broil element both DLBs open on upper/single oven relay board.1522Broil element both DLBs open on lower oven relay board.1531Broil element single DLB open on upper/single oven relay board.1532Broil element single DLB open on lower oven relay board.1620Auxiliary DLB open on relay board.1731Oven light drive open on upper/single oven.1732Oven light drive open on lower oven.1831MDL drive open on upper/single oven.1832MDL drive open on lower oven.1921Right convection fan drive open on upper/single oven.1922Right convection fan drive open on lower oven.1A21Left convection fan drive open on upper/single oven.1A22Left convection fan drive open on lower oven.1B21Cooling fan drive open on upper/single oven.1B22Cooling fan drive open on lower oven.2030Relay board ambient temperature circuit fault.2130Relay board not calibrated.2420RTD circuit fault on relay board.2521MDL switch circuit fault on upper/single oven.2522MDL switch circuit fault on lower oven.2631Door switch circuit fault on upper/single oven.2632Door switch circuit fault on lower oven.2720Output drive circuit fault on relay board.2820MDL drive circuit fault on relay board.2930Line voltage sense circuit fault on relay board.2A30Internal communication fault on relay board.2B30HIP monitor circuit fault on relay board.2C20Relay board CAN network fault.2D3013.5 VDC fault on relay board.2E3012 VDC fault on relay board.3031Temperature probe shorted on upper/single oven.3032Temperature probe shorted on lower oven.3121RTD shorted on upper/single oven.3122RTD shorted on lower oven.3221RTD open on upper/single oven.3222RTD open on lower oven.3311TCO open on upper/single oven3312TCO open on lower oven3421MDL operation timeout on upper/single oven.3422MDL operation timeout on lower oven.3521Door open detected during self-clean on upper/single oven.3522Door open detected during self-clean on lower oven.3721Invalid MDL switch position on upper/single oven.3722Invalid MDL switch position on lower oven.3821Bake bank wiring fault on upper/single oven.3822Bake bank wiring fault on lower oven.3921Broil bank wiring fault on upper/single oven.3922Broil bank wiring fault on lower oven.3A20Auxiliary bank wiring fault.3B20Low input voltage3C20High input voltage3D20Input frequency fault4021Bake element load missing on upper/single oven.4022Bake element load missing on lower oven.4121Right convection element load missing on upper/single oven.4122Right convection element load missing on lower oven.4221Broil element load missing on upper/single oven.4222Broil element load missing on lower oven.4321Left convection element load missing on upper/single oven.4322Left convection element load missing on lower oven.4421Cooling fan load missing on upper/single oven.4422Cooling fan load missing on lower oven.4521Right convection fan load missing on upper/single oven.4522Right convection fan load missing on lower oven.4621Left convection fan load missing on upper/single oven.4622Left convection fan load missing on lower oven.4731Oven lights load missing on upper/single oven.4732Oven lights load missing on lower oven.4831MDL load missing on upper/single oven.4832MDL load missing on lower oven.4910Stalled upper cooling fan4A10Stalled lower cooling fan5021High temperature during self-clean on upper/single oven.5022High temperature during self-clean on lower oven.5121High temperature during non-clean mode on upper/single oven.5122High temperature during non-clean mode on lower oven.5220Relay board ambient temperature exceeds 178°F (81°C).5320Main control board ambient temperature exceeds 151°F (66°C).6020MCB RS485 network fault.6030MCB RS485 network fault.6110General application fault on main control board.6120MCB CAN bus fault.6210MCB configuration data fault (Priority 1).6320MCB invalid configuration data.6410Appliance intermodule communication fault (Priority 1).6510GUI intermodule communication fault (Priority 1).6610Monitor intermodule communication fault (Priority 1).6830MCB ambient temperature circuit fault.8110UIM display backlight fault (Priority 1).9010Touch screen fault.9210Keypad fault (Priority 1).9310Keypad fault (Priority 1).Aux DLB openThe auxiliary double line breaker on the relay module is open.Aux DLB shortedThe auxiliary double line breaker on the relay module is shorted.B021Primary off key circuit fault on upper/single oven.B022Secondary off key circuit fault on lower oven.B120Class B communication fault.B220RCB class B fault.Broil relay openThe broil element relay on the relay module is stuck open.Broil relay shortedThe broil element relay on the relay module is shorted.Brownout errorA brownout or low voltage condition was detected on the incoming power supply.CHECKSUMEEPROM checksum is incorrect; self-check done at power up and when the oven OFF…COMM ERRCommunication lost with the oven controller board, indicating a Head Assembly…Communications error detected by the RMA communication error between the UIM and Relay Module was detected by the…Communications error detected by the UIMA communication error between the UIM and Relay Module was detected by the UIM.CONTROL COMCommunication lost with the oven controller board, reported by the display…COOL FANCooling fan apparency switch is reporting cooling fan failure; could be a…Cooling Fan triac openThe cooling fan triac on the relay module is stuck open.Cooling Fan triac shortedThe cooling fan triac on the relay module is shorted.DLB1 relay or TCO openDouble line breaker 1 relay or thermal cut-out is open on the relay module.DLB1 shortedDouble line breaker 1 on the relay module is shorted.DLB2 relay openDouble line breaker 2 relay on the relay module is open.DLB2 shortedDouble line breaker 2 on the relay module is shorted.E01EEPROM read error after 50 tries, likely caused by problems with processor due…E02EEPROM write error after 10 tries, likely caused by problems with processor due…E03FLASH incorrect process data (device ID number)E04FLASH incorrect process data (checksum)E05FLASH incorrect firmware (checksum)E06Software watchdog resetE09Cooking space temperature sensor with too low resistance (temp < approx…E1EEPROM read error, possibly caused by moisture on control board.E10Cooking space temperature sensor with too high resistance (temp > approx…E10/F0Temperature sensor interruption in the temperature sensor or control board.E100Operating systemE101/F30No communication with control board.E102/F30No communication with relay board.E103/F31Operating systemE104/F31Operating systemE105Operating systemE106Operating systemE107Operating systemE108Operating systemE109Operating systemE11Cooking space temperature reference with too low resistanceE11/F0Reference cavity temperature short circuit.E110Operating systemE111/F5Operating systemE112/F5Operating systemE113Operating systemE114Operating systemE115/F29Door lock not initialized.E116Door lock switch error.E117/F29Short in the motor circuit for the door lock.E118/F29Open circuit in the motor for the door lock.E119/F5External firmware error.E12Cooking space temperature reference with too high resistanceE12/F0Interruption of the reference cavity temperature.E120/F5SOUNDLIBRARY error.E121/F5PICTURELIBRARY error.E122/F5TEXTLIBRARY error.E123/F5FONTLIBRARY error.E124/F5MODELCONFIGLIBRARY error.E125/F5PRESENTATIONLIBRARY error.E13Cooking space temperature exceeds 662°F/350°C during Off/Standby mode…E13/F11Cavity temperature over temperature due to temperature sensor, relay error, or…E131/F5FACTORYSETTINGLIBRARY error.E132/F5EASYCOOK data invalid.E133/F32Calibration value error in the water level measurement.E136/F16Thermostat 160C defective.E137/F16Actuator defective; high resistance to element, bake element, broil element, or…E14/F8Critical relay error due to software or mechanical issue.E15/A1Maximum operating time exceeded; cooking mode is canceled if the unit is not…E16/A1Maximum hold time exceeded; operation is put on hold if waiting for operator…E17Food probe with too low resistance (temp > approx 446°F/230°C), indicating…E17/F1Food probe temperature short circuit due to food probe, food probe socket, or…E18Food probe with too high resistance (temp < approx -20°C), indicating break or…E18/F1Food probe temperature open circuit due to open circuit in food probe wires or…E19/F28Door lock not opening due to cavity temperature >572°F, defective door lock, or…E2EEPROM writes error, possibly caused by moisture on control board.E20/F28Door lock not closing due to defective door lock or relay board.E25Climate temperature sensor with too low resistance (temp > approx 509°F/265°C)…E25/F3Short circuit of temperature sensor 300C.E26Climate temperature sensor with too high resistance (temp < approx 28°F/-2°C)…E26/F3Open circuit in temperature sensor 300C.E27Climate temperature exceeds 356°F/180°C for 60 seconds, indicating hairline…E27/F17Over temperature in temperature sensor 300C; temperature limit exceeded…E29Climate temperature measured 3 times with differential less than 41°F/5°C…E29/F9Leaking steam due to stuck/defective slider, cooking space not tight, door not…E3EEPROM status error, possibly caused by moisture on control board.E30Real-time clock (RTC) not initialized.E31External RTC error.E32Touch button error due to moisture on control board.E33Processor temperature sensor with too low resistance (temp > approx 392°F/200°C)E33/F12TemperatureE34Processor temperature sensor with too high resistance (temp < approx 3°F/-16°C)E34/F12TemperatureE35Processor temperature exceeds 185°F/85°C for 60 seconds, indicating niche…E35/F13TemperatureE36Control unit temperature sensor with too low resistance (temp > approx 200°C)E36/F14TemperatureE37Control unit temperature sensor with too high resistance (temp < approx…E37/F14TemperatureE38Control unit temperature exceeds 185°F/85°C for 120 seconds, indicating niche…E38/F15TemperatureE39LCD error due to loose ribbon cable at X15 or connector not locked.E4/F5Control board MAINDATA invalid due to reload software error.E41Water temperature sensor with too low resistance (temp > approx 392°F/200°C)…E41/F2Short circuit evaporator temperature sensor 100C.E42Water temperature sensor with too high resistance (temp < approx 14°F/-10°C)…E42/F2Open circuit evaporator temperature sensor 100C.E43/F8Neutral relay K1 or K2 stuck; K1 or K2 relay failed self-test.E44Water temperature failed to increase to minimum 180°F/85°C within 185 seconds…E44/F26Increase in water temperature is slow due to defective evaporator heater…E45/F8Actuator relay K3 stuck due to element or relay board damage.E46/F8Actuator relay K4 stuck due to element or relay board damage.E47/F8Actuator relay K5 stuck due to element or relay board damage.E48/F8Actuator relay K6 stuck due to element or relay board damage.E49Control unit button(s) closed for minimum 60 seconds, indicating button…E49/F8Actuator relay K7 stuck due to element or relay board damage.E5/F5Control board MAINDATA incompatible due to reload process error.E50Control unit moisture sensor closed for min 20 seconds, indicating moisture on…E50/F25Moisture on the control board due to room air fan not working or steam leak.E51Processor neutral conductor to main relay (N') records error, possibly caused…E51/F6Relay calibration invalid.E52Leaked water detected for minimum 10 seconds, indicating water tank valve not…E52/F10Water tank leaking due to water valve not tight or defective/damaged water…E53RTC calibration invalid.E54/F7Actuator, relay board locked; error E43 to E49 acknowledged 10 times causing…E55Program control data invalid; error only occurs during operation.E56Sequence control data invalid; error only occurs during operation.E57Mains connection voltage N > 340V, indicating pole conductor connected to…E57/U0L1 voltage over voltage; voltage at L1 greater than 280 VAC for more than three…E58Mains connection L2 no signal, indicating no pole conductor connected to L2…E58/U0L2 voltage over voltage; voltage at L2 greater than 280 VAC for more than three…E59Mains connection voltage > 270VAC for 1 second, indicating overvoltage in mains…E59/U1L1 voltage under voltage; voltage at L1 was between 155 VAC and 176 VAC.E6/F5Unit model identification invalid.E60/U1L2 voltage under voltage; voltage at L2 was between 155 VAC and 176 VAC or 0…E61Mains connection voltage < 170VAC for 1 minute, indicating undervoltage in…E62Mains connection voltage < 150VAC, indicating undervoltage in mains power…E63L1 voltage low voltage; voltage at L1 was between 176 VAC and 198 VAC for more…E64L2 voltage low voltage; voltage at L2 was between 176 VAC and 198 VAC for more…E66Water system level detector pin with low resistance only after refilling…E67Water system level detector pin with low resistance only after refilling (at…E67/F16Thermostat 280C or thermostat 160C tripped; most often a fan or temperature…E68Water system pumping off water at least 3 times within 2 hoursE68/A1Water tank is leaking.E69Water system pumping off water at least 3 times within 2 hoursE69/F21Water tank not initialized; sequence errors E70, E71, and E72.E7/F5Relay board MAINDATA invalid due to reload software error.E70Water system not continuing to feed water in during steaming when it has been a…E70/F21Drive switch for the water tank error due to rack and pinion blocked or switch…E71Water system water is not continuing to be fed in during steaming (with F22…E71/F21Short circuit in the drive motor for the water tank.E72Water system level detector pin with high resistance after pumping off water 5…E72/F21Open circuit in the drive motor of the water tank.E73Water system level detector pin with high resistance after pumping off water 5…E74Water system descaling error during descaling phase (appliance is blocked); no…E74/F22Retractable door handle not initialized; sequence errors E74, E75, E76, and E77.E75Water system descaling error during 1st rinsing phase (appliance is blocked)E75/F22Retractable door handle switch defective or not mounted correctly.E76Water system descaling error during 2nd rinsing phase (appliance is blocked)E76/F22Short circuit retractable door handle drive.E77/F22Open circuit retractable door handle drive.E8/F5Relay board MAINDATA incompatible due to reload software error.E81No calibration of relay.E81/F23Evaporator draining error due to faulty level measure pin, heavy scale on…E84Slider not initialized; sequence errors E85, E86, and E87.E85Slide motor current shows short circuit in slide motor or its wiring.E85/F4Short circuit in stepper motor.E86Slide motor current shows break, indicating break or loose contact in slide…E86/F4Open circuit in the stepper motor.E87Exhaust air slide valve path restricted (motor current error during slide valve…E87/F4Slider blocked; slider path restricted during operation.E88Exhaust air slide valve path restricted during normal operation (motor current…E9/F0Temperature sensor short circuit in the temperature sensor or control board.E97Operating systemE98Operating systemE99Operating systemEEPROMCannot read or write to the EEPROM, indicating an Oven Controller failure.F1Door lock or unlock switches not sensed within 60 seconds while driving the…FUSES WRONGController configuration settings incorrect or code protection is disabled.HIV micro feedback errorThe high-voltage microprocessor feedback signal is in error on the relay module.HIV SPI com err detected by HV-microA high-voltage SPI communication error was detected by the high-voltage…HIV SPI com err detected by RM controlA high-voltage SPI communication error was detected by the relay module control…HSWD active, should be inactiveThe high-side watchdog is active when it should be inactive, indicating a relay…HSWD inactive, should be activeThe high-side watchdog is inactive when it should be active, indicating a relay…Inner Bake relay openThe inner bake element relay on the relay module is stuck open.Inner Bake relay shortedThe inner bake element relay on the relay module is shorted.KEY COMMFailure between the Oven Controller and the Control Panel Assembly (Head…KEYBOARD ERRORKey communication error reported by the display board.Keypad circuit errorKeypad circuit has failed (Priority 1Keypad comm error detected by the KeypadCommunication error between keypad and User Interface Module detected by the…Keypad comm error detected by the UIMA communication error between the keypad and User Interface Module was detected…Keypad EE CRC errorThe keypad EEPROM CRC check failed, indicating corrupted stored data.Keypad FMEA errorA Failure Mode and Effects Analysis error was detected in the keypad assembly.Keypad mains sync errorThe keypad has lost synchronization with the AC mains frequency.LCD module errorAn error was detected in the LCD display module.Left Convect Fan triac openThe left convection fan triac on the relay module is stuck open.Left Convect Fan triac shortedThe left convection fan triac on the relay module is shorted.Left Convect relay openThe left convection element relay on the relay module is stuck open.Left Convect relay shortedThe left convection element relay on the relay module is shorted.Lock inputs invalidThe door lock switch inputs are in an invalid state.Lock/Door inputs invalid for CleanThe door lock and door switch inputs are in an invalid state for self-clean…LOWER RELAYLower oven shift register feedback has indicated a failure.MDL circuitry errorAn error was detected in the motorized door lock circuitry on the relay module.MDL relay openThe motorized door lock relay on the relay module is stuck open.MDL relay shortedThe motorized door lock relay on the relay module is shorted.MDL run timeoutThe motorized door lock motor ran too long without reaching the target position.No Broil element detectThe broil element was not detected during operation or self-test.No Cooling Fan detectThe cooling fan was not detected during operation or self-test.No Inner Bake element detectThe inner bake element was not detected during operation or self-test.No Left Convect Fan detectThe left convection fan was not detected during operation or self-test.No Lt Conv element detectThe left convection element was not detected during operation or self-test.No MDL detectThe motorized door lock assembly was not detected during operation or self-test.No Outer Bake element detectThe outer bake element was not detected during operation or self-test.No Oven Light detectThe oven light was not detected during operation or self-test.No Rt Conv element detectThe right convection element was not detected during operation or self-test.No Rt Convect Fan detectThe right convection fan was not detected during operation or self-test.Outer Bake relay openThe outer bake element relay on the relay module is stuck open.Outer Bake relay shortedThe outer bake element relay on the relay module is shorted.Oven Light relay openThe oven light relay on the relay module is stuck open.Oven Light relay shortedThe oven light relay on the relay module is shorted.OVER TEMPOver temperature occurs when the oven reaches a temperature of 630°F for an…Overtemp error - door lockedAn over-temperature condition occurred while the oven door was locked.Overtemp error - door unlockedAn over-temperature condition occurred while the oven door was unlocked.PROBE SHORTEDMeat probe sensed as being shorted, occurs if the meat probe is not inserted…RELAY CALRelay phase calibration failed, indicating a timing problem with the relay on…RELAY STUCKPower relay shortedRight Convect Fan triac openThe right convection fan triac on the relay module is stuck open.Right Convect Fan triac shortedThe right convection fan triac on the relay module is shorted.Right Convect relay openThe right convection element relay on the relay module is stuck open.Right Convect relay shortedThe right convection element relay on the relay module is shorted.RM Ambient overtemp errorThe relay module ambient temperature sensor has detected an over-temperature…RM Ambient Thermistor open errorRelay Module ambient temperature thermistor is reading open.RM Ambient Thermistor shorted errorRelay Module ambient temperature thermistor is reading shorted.RM EE checksum errorThe relay module EEPROM checksum failed, indicating corrupted stored data.RM FMEA circuitry errorA Failure Mode and Effects Analysis circuitry error was detected on the relay…RM HIV fuse errorThe relay module high-voltage fuse has blown or is open.RM Line Voltage A/D errorThe relay module line voltage analog-to-digital converter is in error.RM LOV fuse errorRelay Module low voltage fuse has failed (Priority 1RTD Circuitry errorAn error was detected in the RTD temperature sensor circuitry on the relay…RTD OpenThe oven RTD temperature sensor circuit is open, indicating a failure in the…RTD ShortedThe oven RTD temperature sensor circuit is shorted, indicating a failure in the…Self-clean rate-of rise errorThe oven temperature rate of rise during self-clean is abnormal, indicating…SENSOR CALAnalog to digital error during calibration phase, indicating an Oven Controller…SPI COM ERRSPI communication lost with main controller reported by the display head…SPI COMMSPI communication lost with main controller reported by the display head…TCO detect as openThe thermal cut-out (TCO) has been detected as open.Temp Probe ShortThe meat probe circuit is shorted, indicating a failure in the probe device or…UIM Ambient overtemp errorThe User Interface Module ambient temperature sensor has detected an…UIM ambient thermistor open errorThe User Interface Module ambient thermistor circuit is open.UIM ambient thermistor shorted errorThe User Interface Module ambient thermistor circuit is shorted.UIM configuration data CRC errorUser Interface Module configuration data CRC check failed (Priority 1).UIM EE checksum errorThe User Interface Module EEPROM checksum failed, indicating corrupted stored…UIM fuse errorThe User Interface Module fuse has blown or is open.