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Error code reference
Whirlpool Microwave Error Code Microwave Oven Inverter Error
Microwave oven inverter communication or operation error.
SourceWhirlpool Microwave - Tech Sheet: Safety & Service (W10492441)p. 4
Diagnostic procedure
The full Microwave Oven Inverter Error 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
Cycle power (Off, wait 10 seconds, On). Start a microwave cooking function and wait 1 minute to verify. Unplug and check P21 and P22 connections on Microwave Appliance Manager.
SourceWhirlpool Microwave - Tech Sheet: Safety & Service (W10492441)p. 4
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 Whirlpool microwave.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
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