What does CF mean?
Communication error between boards.
Common causes
- Loose ribbon cable
- Failed board
- Wire harness damage
Diagnostic & testing steps
- 1. Unplug 5 minutes
- 2. Check ribbon cable
- 3. Inspect connectors
- 4. Replace board if needed
Tools required
- Multimeter
- Phillips screwdriver
OEM parts & part numbers
Main Control Board, UI Board
Part numbers: W10310240
Safety warning
⚠️ Unplug before servicing
Try DiagBuddy AI free — instant 30-second diagnostics for technicians.