How do I fix error code C-31 on a Samsung ovens & ranges?

1. undefined: Disconnect power and open rear cover 2. undefined: Disconnect two harness connectors to oven temperature sensor 3. undefined: Measure sensor resistance (normal: 1080 ohms at room temperature) 4. undefined: Replace oven temperature sensor if out of spec 5. undefined: Replace main PCB if sensor is OK but error persists

Samsung Ovens & Ranges

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

This Error Applies To

Samsung NX58M66 Series Ovens & Ranges

Service manual exact match: NX58M6630SGService manual exact match: NX58M6630SSService manual exact match: NX58M6650WSService manual exact match: NX58M6630S

Related Error Codes

C-F2

Main PCB to Touch module communication error

C-21

Oven overheating — oven temperature exceeds 650°F (343°C) in any cooking function except self-clean

C-d0

Shorted keypad key detected

C-20

Oven temperature sensor open (resistance over 2950 ohms) or shorted (resistance under 930 ohms)

C-30

PCB internal sensor opened (over 3900 ohms) or shorted

C-d1

Door locking mechanism error — door lock motor or switch malfunction

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