What does CF mean?
Communication failure between control boards.
Common causes
- Loose ribbon cable
- Failed main board
- Failed UI board
- Wire harness damage
Diagnostic & testing steps
- 1. Unplug for 5 minutes
- 2. Check ribbon cable
- 3. Inspect for damage
- 4. Replace boards as needed
Tools required
- Multimeter
- Phillips screwdriver
OEM parts & part numbers
Main Control Board, UI Board
Part numbers: W10310240, W10894866
Safety warning
⚠️ Unplug before servicing
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