Thermador Oven & Stove Error Codes

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📋 Error Code Index — Thermador Oven & Stove

E101Oven Temperature Sensor Open E102Oven Temperature Sensor Short E103Cooling Fan Fault E104Door Lock Fault E105Control Board Memory Fault E106Key Panel Short E107Communication Fault E108Relay Board Fault

E101

Oven Temperature Sensor Open

RTD probe open circuit — oven cannot monitor temperature.

Medium Priority

Possible Causes
RTD probe failed open
Connector loose or corroded
Probe wiring open
Diagnostic Steps
1Test probe resistance — ~1080Ω at room temperature
2OL confirms failed probe
3Reseat connector before replacing
4Replace sensor if open confirmed

E102

Oven Temperature Sensor Short

RTD probe shorted — incorrect temperature reading.

Urgent

Possible Causes
RTD probe failed shorted
Probe wiring touching cavity metal
Diagnostic Steps
1Test probe — near 0Ω confirms short
2Inspect probe wiring
3Replace sensor — do not operate until repaired

E103

Cooling Fan Fault

Cooling fan not operating — overheating risk to control electronics.

High Priority

Possible Causes
Fan motor failed or seized
Fan blade obstructed
Wiring to fan open
Diagnostic Steps
1Check fan blade for obstruction
2Test fan motor winding continuity
3Replace cooling fan motor if failed

E104

Door Lock Fault

Door lock not confirming position during self-clean cycle.

Medium Priority

Possible Causes
Lock motor failed
Mechanical obstruction in latch path
Wiring to lock open
Diagnostic Steps
1Check latch for obstruction
2Test lock motor continuity
3Replace lock assembly if motor failed

E105

Control Board Memory Fault

Non-volatile memory on control board has lost calibration data.

High Priority

Possible Causes
Control board EEPROM failure
Power interruption during programming
Diagnostic Steps
1Power cycle — disconnect 5 minutes
2Replace control board if fault persists

E106

Key Panel Short

A key on the membrane panel is continuously activated.

Medium Priority

Possible Causes
Moisture on panel causing false activation
Physical damage to membrane keypad
Debris under surface
Diagnostic Steps
1Dry panel area with clean cloth
2Press Cancel to reset
3Disconnect power 60 seconds
4Replace control panel if fault persists

E107

Communication Fault

Communication error between main control board and display module.

High Priority

Possible Causes
Wiring harness loose between boards
Display module failed
Main control board failed
Diagnostic Steps
1Check wiring harness connections
2Power cycle unit 60 seconds
3Replace display module or main board as indicated

E108

Relay Board Fault

Relay board controlling heating circuits has detected a fault.

Urgent

Possible Causes
Relay board component failure
Relay welded closed — heater running uncontrolled
Wiring between relay board and main board open
Diagnostic Steps
1Disconnect power immediately if oven is overheating
2Test relay board operation
3Replace relay board if fault confirmed

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Important Notice: Error code information on this page is based on Thermador manufacturer service documentation. Oven repair involves high-voltage components. Gas appliances require licensed gas technician service. AppliancesCare Appliance Repair LLC provides this information for educational purposes only.