Error Code C-F0
Communication error — Main PCB to VFD display module or Main PCB to Sub PCB communication failure
Moderate
Address soon - your appliance may not work properly
What This Means
PCB firmware version mismatch; Wire harness disconnected between Main PCB and SUB PCB; Defective main PCB or display PCB
How to Fix
- 1
Check program versions: Main must be 1205, Sub must be 1201, VFD must be 1205.
- 2
If versions are not correct: replace the PCB.
- 3
If versions are correct, check if wire harness is disconnected.
- 4
Harness connections: Main PCB connector CN470, SUB connector CN450.
- 5
If harness is disconnected: connect wire harness completely and perform operation again.
- 6
If harness is connected but error persists: replace the PCB.
Other Error Codes for NX58R9420SS
Door locking error — door lock motor or switch malfunction during self-clean locking sequence
Oven temperature sensor open circuit (resistance over 2950 Ohm) or shorted circuit (resistance under 930 Ohm)
Shorted touch keypad — a key on the glass touch control panel is shorted or stuck
Oven overheating safety error — oven temperature has exceeded safe operating limit
Communication error — Main PCB to Touch panel or Display PCB communication failure