Error code reference

Whirlpool Microwave Error Code F4

Microwave sensors failure - covers convection thermistor, ambient sensor (on MW appliance manager), and humidity sensor.

SourceWhirlpool Microwave - Tech Sheet: Service Guidelines (KEMS308SSS)p. 4

Whirlpool codes Whirlpool microwave codes

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

First diagnostic step

Enter Diagnostics Mode, press key 6 to transition to Sensors screen, verify temperature readings; if dashes appear, check sensor connections at P6 and P4.

SourceWhirlpool Microwave - Tech Sheet: Service Guidelines (KEMS308SSS)p. 4

Unlock with pass

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

7 manuals in the MyPros+ library document this code for Whirlpool microwave.

Models covered by the manuals that document this code

More models are covered than are listed here.

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The full F4 procedure

Where this code is documented

Models covered by the manuals that document this code

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