Error Code C-30
Temperature sensor internal to Main PCB is not functioning
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: C-30
What This Means
Internal PCB sensor disconnected; PCB component failure; Internal wire break on PCB
What actually causes this:
Manufacturing defect, heat damage, or component failure
First Thing to Check
Confirm error persists after power cycle
Parts Involved
How to Fix
- 1
Disconnect power
- 2
Open back cover to access Main PCB
- 3
Visually inspect PCB for damaged sensor component
Other Error Codes for NQ70M9770D
Keypad short circuit detected
Temperature sensor reading exceeds safe operating threshold
Door lock mechanism malfunction or misalignment
Meat probe sensor circuit shows abnormally low resistance
Bake heating element not energizing during self-test
Main control board temperature sensor reads excessive heat
Partition configuration changed during active cooking cycle
Broil heating element not energizing during self-test