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Error code reference
Whirlpool Washer Error Code F99
Not supported-user selected on the UI an unsupported cycle on the CCU; mismatch of User Interface and CCU or corrupted EEPROM.
SourceWhirlpool WFW9400SW04 - Tech Sheet: Diagnostic & Troubleshooting Guidep. 6
Diagnostic procedure
The full F99 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
Perform Service Cycle to pair the UI and CCU software; replace User Interface; if failure still present, also replace the CCU.
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
2 manuals in the MyPros+ library document this code for Whirlpool washer.
Models covered by the manuals that document this code
- 461970252141
- 461970252142
- 4770
- MHWE300VW11
- MHWE300VW12
- MHWE300VW13
- MHWE400WJ00
- MHWE400WJ01
- MHWE400WR00
- MHWE400WR01
- MHWE400WW00
- MHWE450WJ00
- MHWE450WJ01
- MHWE450WJ02
- MHWE450WR00
- MHWE450WR01
- MHWE450WR02
- MHWE450WW00
- MHWE450WW01
- MHWE450WW02
- MHWE500VP01
- MHWE500VW01
- MHWE500VW12
- MHWE550WJ00
More models are covered than are listed here.
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