Thermador Oven F60 Error: Lower Oven Sensor Shorted
thermador oven f60 error indicates lower oven sensor shorted. Stop using the appliance and call a Thermador-certified technician immediately for diagnosis. What Does Thermador Oven Error Code F60 Mean? The F60 error code on Thermador double and combination wall ovens — including C302, CM302, and CJ301 model series — indicates the lower oven temperature sensor […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. The upper oven on Thermador double wall oven models is fully safe for all normal cooking while F60 is active. The lower oven must not be used until the sensor or wiring is repaired.
Can I reset the code?
No. A reset clears F60 from the display but the short circuit in the lower sensor remains. F60 returns as soon as the control checks the lower RTD on the next power-up or lower oven cooking attempt.
When to stop immediately?
Stop if you notice: F60 returns after the dry-out period on every lower oven power-up attempt, Visible burned or melted wiring at the back of the lower oven cavity.
Symptoms You May Notice
Lower oven cavity stays cold while preheat shows active on the lower display
The lower oven indicates it is preheating but the cavity does not warm up — the shorted sensor has caused the control to disable lower oven heating to prevent a thermal runaway.
F60 appears the first time the lower oven is used after a self-clean cycle
The lower oven self-clean completed without error but the next cooking attempt triggers F60, indicating the clean-cycle heat damaged the lower sensor wiring.
Upper oven heats and cooks normally while the lower cavity is locked out
On Thermador C302 and CM302 double wall ovens, the upper oven sensor circuit is independent — F60 affects only the lower cavity RTD circuit.
Possible Causes
Lower RTD sensor wiring shorted to chassis
Wire insulation on the lower oven sensor harness has melted after a self-clean cycle, allowing the conductor to contact the cavity wall or rear panel and create a short to ground.
Requires ProfessionalInternally shorted lower RTD probe
The platinum element inside the lower oven sensor probe has failed in the closed-circuit position, reading near-zero ohms regardless of cavity temperature.
Requires ProfessionalMoisture in the lower sensor connector
Steam from cooking or condensation from a self-clean cool-down cycle has migrated into the lower sensor harness connector, creating a temporary short-circuit path between the sensor wires.
DIY PossibleSafe Checks You Can Do
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1
Cool-down and dry-out after a clean or steam session
Switch the oven breaker off and leave the lower oven door open for at least two hours. This allows moisture in the lower sensor connector to evaporate before the next test.
This dry-out step is only useful if F60 appeared right after a self-clean or steam cooking session. If the error has been present across multiple uses, moisture has already dried and the short is physical.
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2
Use the upper oven and confirm independence
After restoring power, run a 300°F Bake on the upper oven. Successful upper oven operation confirms the control board is healthy and the fault is isolated to the lower RTD sensor circuit.
Thermador C302 and CM302 upper and lower sensor circuits are electrically independent. Upper oven working normally rules out a shared control board failure.
When to Call a Professional
Contact a qualified technician if:
- Lower RTD sensor harness reads near zero ohms when disconnected at the control board
- Lower sensor wires show melted insulation or contact marks against the cavity rear wall
- F60 first appeared after a lower oven self-clean cycle — heat damage is the confirmed cause
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