Thermador & Viking Appliance Error Codes

Range and Oven Errors

Error codes specific to Thermador and Viking ranges, ovens, and cooktops.

Code	Meaning	Possible Causes	Solutions
E1	Oven Temperature Sensor Error - Oven temperature sensor malfunction	•Temperature sensor failure •Sensor wiring issue •Sensor not properly positioned •Control board sensor circuit failure •Sensor calibration error	Check temperature sensor wiring Test sensor resistance at different temperatures Verify sensor positioning Check control board sensor connections Calibrate temperature sensor if possible Replace temperature sensor if faulty
E2	Oven Overheating Error - Oven temperature exceeds safe limit	•Temperature sensor failure •Heating element not turning off •Control board temperature control failure •Thermostat failure •Relay failure	Immediately turn off oven and allow to cool Check temperature sensor operation Verify heating element control Test thermostat Check control board temperature control Inspect relay operation
E3	Oven Not Heating Error - Oven not reaching set temperature	•Heating element failure •Heating element wiring issue •Control board heating control failure •Thermostat failure •Relay failure	Check heating element for continuity Test heating element resistance Verify heating element wiring Test thermostat Check control board heating control Test relay operation Replace heating element if necessary
E4	Cooktop Burner Error - Cooktop burner not igniting or heating	•Igniter failure •Gas valve failure •Burner clogged •Igniter wiring issue •Control board burner control failure •Gas supply issue	Check igniter operation Test gas valve Clean burner ports Verify igniter wiring Check gas supply Test control board burner control Replace igniter or gas valve if necessary
E5	Oven Door Error - Oven door not closing or sealing properly	•Door switch failure •Door not properly closed •Door seal damaged •Door hinge issue •Door alignment problem	Ensure door is fully closed Test door switch for continuity Inspect door seal for damage Check door alignment Inspect door hinges Replace door switch if necessary
E6	Control Panel Error - Control panel communication failure	•Control panel failure •Control panel wiring issue •Control board communication failure •Display malfunction •Touch screen failure	Check control panel connections Verify control panel wiring Test control board communication Reset control panel if possible Clean touch screen if applicable Replace control panel if necessary

Refrigerator Errors

Error codes specific to Thermador and Viking refrigerators and cooling systems.

Code	Meaning	Possible Causes	Solutions
E7	Temperature Sensor Error - Refrigerator temperature sensor malfunction	•Temperature sensor failure •Sensor wiring issue •Sensor not properly positioned •Control board sensor circuit failure •Sensor calibration error	Check temperature sensor wiring Test sensor resistance at different temperatures Verify sensor positioning Check control board sensor connections Calibrate temperature sensor if possible Replace temperature sensor if faulty
E8	Compressor Error - Compressor malfunction	•Compressor failure •Compressor relay failure •Compressor overload protection triggered •Refrigerant leak •Compressor wiring issue •Compressor start capacitor failure	Check compressor relay Test compressor windings Test compressor start capacitor Verify refrigerant levels Check for refrigerant leaks Inspect compressor wiring Replace compressor if necessary
E9	Defrost System Error - Defrost system malfunction	•Defrost heater failure •Defrost thermostat failure •Defrost timer malfunction •Defrost system wiring issue •Ice buildup blocking airflow	Check defrost heater for continuity Test defrost thermostat Verify defrost timer operation Check defrost system wiring Remove ice buildup if present Replace faulty defrost components
E10	Fan Motor Error - Evaporator or condenser fan malfunction	•Fan motor failure •Fan blade obstruction •Fan motor wiring issue •Fan motor capacitor failure •Ice buildup blocking fan	Check for fan blade obstructions Remove ice buildup around fan Test fan motor windings Verify fan motor wiring Test fan motor capacitor Replace fan motor if necessary

Dishwasher Errors

Error codes specific to Thermador and Viking dishwashers.

Code	Meaning	Possible Causes	Solutions
E11	Water Supply Error - Insufficient water supply or water inlet valve issue	•Water supply valve closed •Kinked or blocked water inlet hose •Low water pressure •Water inlet valve malfunction •Water filter clogged	Check that water supply valve is fully open Inspect water inlet hose for kinks or blockages Verify water pressure is adequate Clean or replace water inlet filter Check water inlet valve operation Test water inlet valve
E12	Drain Error - Water not draining properly	•Drain hose kinked or blocked •Drain pump malfunction •Drain filter clogged •Food debris blocking drain •Drain pump impeller damaged	Check drain hose for kinks or obstructions Clean drain filter Inspect drain pump for blockages Remove food debris from drain Test drain pump operation Replace drain pump if necessary
E13	Heating Error - Water heating system malfunction	•Heating element failure •Heating element wiring issue •Temperature sensor failure •Control board heating control failure	Check heating element for continuity Test heating element resistance Verify heating element wiring Test temperature sensor Check control board heating control Replace heating element if necessary
E14	Door Error - Dishwasher door not closing or sealing properly	•Door switch failure •Door not properly closed •Door seal damaged •Door latch issue	Ensure door is fully closed Test door switch for continuity Inspect door seal for damage Check door latch operation Replace door switch or seal if necessary

Control and System Errors

Error codes related to control board, communication, and system-level issues.

Code	Meaning	Possible Causes	Solutions
F1	Control Board Communication Error	•Control board failure •Wiring harness issue •Display board communication failure •Power supply issue •Software error	Unplug appliance for 5 minutes and restart Check all wiring harness connections Inspect control board for visible damage Verify power supply to control board Reset appliance to factory settings if possible Replace control board if necessary
F2	Power Supply Error - Power supply issue detected	•Power cord issue •Power outlet problem •Fuse blown •Circuit breaker tripped •Power supply board failure	Check power cord for damage Verify power outlet is working Check and replace fuse if necessary Reset circuit breaker Test power supply board Replace power supply components if faulty
F3	Sensor Communication Error - Sensor communication failure	•Sensor wiring harness issue •Multiple sensor failures •Control board sensor circuit failure •Communication bus error	Check all sensor wiring connections Test individual sensors Verify control board sensor circuits Check communication bus connections Replace faulty sensors or control board
F4	Software Error - Software or firmware issue	•Software corruption •Firmware update failure •Control board memory error •Software bug	Reset appliance to factory settings if possible Check for available firmware updates Power cycle appliance (unplug for 10 minutes) Contact Thermador or Viking support for firmware update Replace control board if software cannot be recovered

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Important Information

If you encounter persistent errors or are unable to resolve an issue using the solutions provided, contact Thermador or Viking customer support or a qualified appliance repair technician for professional assistance. Some errors may require technical support, component replacement, or specialized diagnostic equipment that must be handled by authorized service providers. Always unplug the appliance before attempting any repairs and never attempt to modify electrical components or work with gas appliances without proper training. Different Thermador and Viking models may have model-specific error codes—always consult your appliance's user manual for the most accurate information.

For technical support, contact Thermador or Viking customer service or consult a qualified appliance repair professional for expert assistance.

Safety Information: Always disconnect power before performing any diagnostic or repair work. Some components may retain electrical charge even after unplugging. Working with gas appliances requires special care—never attempt to repair gas connections yourself. If you are unsure about any repair procedure, contact a qualified technician. Working with electrical appliances can be dangerous and may void your warranty if not performed correctly. Thermador and Viking are premium appliances that may require specialized parts and service—always consult authorized service providers for complex repairs.

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Troubleshooting Guidelines

Common Resolution Steps

✓Always unplug appliance before troubleshooting or repairs
✓Check power supply and connections first
✓For ranges/ovens: Allow to cool before inspection
✓For gas appliances: Turn off gas supply before work
✓Verify temperature settings are correct
✓Document error codes and symptoms for service calls
✓Reset appliance by unplugging for 5 minutes if safe to do so

Prevention Strategies

✓Follow manufacturer's maintenance schedule
✓For refrigerators: Clean condenser coils every 6 months
✓For dishwashers: Clean filters regularly
✓For ranges: Clean burners and oven regularly
✓Keep door seals clean and inspect regularly
✓Keep appliance manual for reference
✓Schedule professional maintenance as recommended

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Frequently Asked Questions

What should I do if my Thermador or Viking oven shows error code E1?

Error code E1 indicates an oven temperature sensor malfunction. Check the temperature sensor wiring, test sensor resistance at different temperatures, verify the sensor is properly positioned, and check control board sensor connections. Replace the temperature sensor if faulty.

How do I fix a cooktop burner error (E4)?

Error code E4 indicates a cooktop burner issue. Check igniter operation, test the gas valve, clean burner ports, verify igniter wiring, check gas supply, and test control board burner control. Replace igniter or gas valve if necessary. For gas appliances, always turn off gas supply before any work.

What causes a compressor error (E8) in my refrigerator?

Error code E8 indicates a compressor malfunction. Check the compressor relay, test compressor windings, test the compressor start capacitor, verify refrigerant levels, check for refrigerant leaks, and inspect compressor wiring. Replace the compressor if necessary. Working with refrigerant requires special certification.

How do I resolve a dishwasher drain error (E12)?

Error code E12 indicates a drain error. Check drain hose for kinks or obstructions, clean the drain filter, inspect drain pump for blockages, remove food debris from drain, test drain pump operation, and replace drain pump if necessary.

What should I do if I see error code F1 (control board error)?

Error code F1 indicates a control board communication error. Try unplugging the appliance for 5 minutes and restarting. Check all wiring harness connections, inspect the control board for visible damage, verify power supply to the control board, and reset the appliance to factory settings if possible. If the problem persists, the control board may need replacement.

How often should I maintain my Thermador or Viking appliances?

Regular maintenance helps prevent many error codes. For refrigerators: Clean condenser coils every 6 months. For dishwashers: Clean filters regularly. For ranges: Clean burners and oven regularly. Follow manufacturer recommendations for your specific model. Schedule professional maintenance as recommended.

Can I repair Thermador and Viking appliances myself?

Some simple issues like cleaning, checking connections, and basic troubleshooting can be done safely. However, electrical repairs, component replacement, and work involving gas should be performed by qualified technicians. Always unplug the appliance before any work and consult your manual. Thermador and Viking are premium appliances that may require specialized parts and service—always consult authorized service providers for complex repairs.

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Summary

Proper interpretation of Thermador and Viking appliance error codes is essential for efficient troubleshooting and maintenance. This comprehensive reference enables quick problem identification and guides appropriate response actions. Thermador and Viking appliances display error codes on digital displays or through indicator lights to indicate specific issues. Understanding these codes helps maintain appliance performance and minimizes repair costs. Thermador and Viking manufacture premium kitchen appliances including ranges, ovens, refrigerators, dishwashers, and other luxury kitchen equipment, each with model-specific features and error code systems. This guide provides troubleshooting guides and solutions for all common Thermador and Viking appliance error codes.

ℹ️For persistent errors or issues that cannot be resolved using this guide, contact Thermador or Viking customer support or consult a qualified appliance repair technician for professional assistance. Some errors may require technical support, component replacement, or specialized diagnostic equipment. Always document error codes and symptoms when contacting support for faster resolution. Note that error code formats may vary by appliance model and software version—always consult your specific appliance's user manual for the most accurate information. Safety should always be the top priority when working with electrical appliances. Working with gas appliances requires special care and should only be performed by qualified technicians. Thermador and Viking are premium appliances that may require specialized parts and service—always consult authorized service providers for complex repairs.