Error Code C-31
PCB ambient temperature high — safety error
Moderate
Address soon - your appliance may not work properly
What This Means
PCB overheating due to environmental conditions or failed cooling; Failed oven temperature sensor causing runaway heating
How to Fix
- 1
Disconnect power and open the rear cover
- 2
Disconnect harness connectors to the oven temperature sensor
- 3
Measure sensor resistance: 1080 ohm at room temperature
- 4
Replace oven temperature sensor if out of spec
- 5
Replace the PCB
This Error Applies To
Samsung NX58K7850S Series Ovens & Ranges (2018) (2018–present)
Related Error Codes
Divider sensing information — Flex Duo divider insert or remove state mismatch
PCB sensor opened or shorted — oven sensor error at PCB side
Shorted key — keypad short circuit detected
Main-to-Sub communication error — continuous communication failure between Main PCB and Sub PCB
Oven heating over — oven temperature has risen excessively, triggered at 650 F (343 C) in any cooking function except self-clean
Door locking information — door lock mechanism error
BLDC motor operation information — cooling fan motor or air intake motor error
Oven sensor opened (over 2950 ohm) or oven sensor shorted (under 930 ohm)