Error Code C-30
PCB internal temperature sensor malfunction
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: C-30
What This Means
PCB temperature sensor failure; Loose or disconnected sensor connector; Defective Main PCB
What actually causes this:
Sensor element failure or defective PCB circuitry
First Thing to Check
Disconnect power and inspect PCB connector integrity
Parts Involved
How to Fix
- 1
Disconnect power
- 2
Open back cover of oven
Other Error Codes for NQ70M7770DG
Control board temperature exceeds safe limit
Water not draining from oven cavity after cycle completion
Shorted keypad keys detected
Loss of communication between control boards
Temperature probe sensor short circuit detected
Magnetron or convection cooling fan not operating correctly
Temperature sensor open circuit or short detected during operation
Door lock mechanism positioned incorrectly or not functioning