Error code reference

KitchenAid Microwave Error Code F6

MW relay (Relay 4903) failure: relay contact may have welded closed.

SourceKitchenAid Microwave - Tech Sheet - W10142353 - Rev A: KHMS1850SSS0p. 8

KitchenAid codes KitchenAid microwave codes

Diagnostic procedure

The full F6 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

First diagnostic step

Unplug microwave oven or disconnect power, then check wiring to Relay 4903.

SourceKitchenAid Microwave - Tech Sheet - W10142353 - Rev A: KHMS1850SSS0p. 8

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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

10 manuals in the MyPros+ library document this code for KitchenAid microwave.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full F6 procedure

Where this code is documented

Models covered by the manuals that document this code

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