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Error code reference
Thermador Refrigerator Error Code F4
Shorted Sensor: A shorted sensor is detected for 16 seconds or more; one or both sensor wires are grounded (pinched wire).
SourceThermador RDF Refrigerator - Full Service Manualp. 3-1
Diagnostic procedure
The full F4 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check all wire connections. Make sure that none of the wires are pinched. Check the resistance of the sensor (approximately 1000 ohms at room temperature).
SourceThermador RDF Refrigerator - Full Service Manualp. 3-1
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented
1 manual in the MyPros+ library documents this code for Thermador refrigerator.
Models covered by the manuals that document this code
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