Thermador Oven Not Self Cleaning – How to fix? by HoustonAuthorizedRepair.com
The part(s) or condition(s) listed below for the symptom Oven not self-cleaning are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
Most Frequent Causes for Oven Not Self Cleaning
| Cause 1 Door Lock Motor and Switch Assembly | Cause 2 Temperature Control Thermostat | Cause 3 Oven Control Board |
| During the oven’s self-cleaning cycle, the door lock switch activates the door lock motor to prevent the oven door from being opened. If the door lock motor and switch assembly is defective, the oven door will not unlock once the self-cleaning cycle is complete. On most ovens, you can open the oven door by removing certain screws or panels. Check your owner’s manual for further instructions. | The oven thermostat sends voltage to the heating circuit and regulates the temperature of the oven during the self-cleaning cycle. It is possible for the oven thermostat to function properly for baking and broiling but not for cleaning. Due to its complexity, the oven thermostat is difficult to test. If you suspect the oven thermostat is at fault, replace it. | The oven control board has relays that send voltage to the bake and broil circuits according to the user settings and sensor input. If the control board is defective, it may not send voltage to the heating components. |
| Cause 4 Thermal Fuse | Cause 5 Door Switch |
| The thermal fuse is a safety feature that protects the oven from overheating. If the oven gets too hot, the thermal fuse trips to shut off power to the oven. The thermal fuse is not resettable—if the thermal fuse blows, you must replace it. To determine if the thermal fuse has blower, use a multimeter to test it for continuity. If the thermal fuse does not have continuity, replace it. | A defective door switch may prevent the oven door from locking. The door switch is often part of the circuit that causes the oven door to lock during the self-cleaning cycle. If the oven door is unable to lock, the self-cleaning cycle will not start. To determine whether the door switch is defective, use a multimeter to test it for continuity. If the door switch does not have continuity, replace it. |
