Error Code C-31
Safety shutoff due to detected overtemperature on PCB sensor
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: C-31
What This Means
Defective NTC sensor; Sensor in contact with heating element; PCB failure; Wiring short circuit
What actually causes this:
The oven safety sensor detected dangerous temperature or is malfunctioning
First Thing to Check
Let oven cool, then attempt to operate and observe if error recurs
Parts Involved
How to Fix
- 1
Disconnect power and open back cover
- 2
Visually inspect NTC sensor for damage or bad solder joints
- 3
Remove PCB and measure NTC sensor resistance (should be 3200 ohms)
This Error Applies To
Samsung DOB30P977D Series Ovens & Ranges (2020) (2020–present)
Related Error Codes
Oven temperature control failure causing excessive heating
Temperature probe sensor short circuit detected
Steam temperature sensor open circuit detected
Drain pump failure or water sensor malfunction in steam system
Main and sub control board communication failure
A control button is stuck in pressed position
Cooling fan motor failure
PCB internal temperature sensor open circuit