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ErrBase

Thermador Oven Error Codes

All Thermador oven error codes with step-by-step troubleshooting, multimeter specs, and OEM part numbers.

6 error codes

CodeMeaning
F24The RTD probe, which is what Thermador uses instead of a basic thermistor, is either reading outside its normal resistance range or has gone open circuit entirely. The control board gets no usable temperature signal and locks the oven out so it can't run unsafely.
moderatebeginner
F34The board detected a relay that won't open or close the way it's supposed to. Those relays are heavy-duty switches that control power to your bake and broil elements. When one sticks closed or burns open, the board flags it and shuts down to protect you.
highintermediate
F64The primary control board has detected a definitive internal fault and cannot continue operating. F64 is more specific than F7 and less likely to be a transient fault.
highintermediate
F7Basically the control board hit a fault condition it couldn't recover from on its own. Could be a door switch not confirming the door's closed, could be an internal relay hiccup on the board itself. Sometimes it's just electrical noise from a power surge. The board flags F7 and locks things down until you clear it.
highintermediate
HUBThe oven's control board monitors the RTD temperature probe constantly. When it detects resistance outside the expected range, or loses communication with the probe entirely, it throws an F-code and shuts down heating to prevent a runaway temperature situation. Different codes point to different parts of that communication chain.
lowbeginner
PROBEThe oven's RTD temperature probe is disconnected or has failed. PROBE displays on newer Thermador models with full LCD panels; older models show F24 for the same condition.
moderatebeginner