Error Code C-31
PCB ambient temperature too high — temperature around PCB is excessive
Moderate
Address soon - your appliance may not work properly
What This Means
Cooling fan not operating; Blocked ventilation around PCB; Faulty oven temperature sensor causing false reading; Faulty PCB
How to Fix
- 1
Disconnect power and open rear cover
- 2
Disconnect two harness connectors to oven temperature sensor
- 3
Measure sensor resistance (normal: 1080 ohms at room temperature)
- 4
Replace oven temperature sensor if out of spec
- 5
Replace main PCB if sensor is OK but error persists
Other Error Codes for NX58M6630SS
Main PCB to Touch module communication error
Oven overheating — oven temperature exceeds 650°F (343°C) in any cooking function except self-clean
Shorted keypad key detected
Oven temperature sensor open (resistance over 2950 ohms) or shorted (resistance under 930 ohms)
PCB internal sensor opened (over 3900 ohms) or shorted
Door locking mechanism error — door lock motor or switch malfunction