How do I fix error code C-20 on a Samsung ovens & ranges?

1. undefined: Check whether connector at the main pcb has been inserted 2. undefined: Check whether connector at the sensor has been inserted 3. undefined: Measure sensor resistance (should be 1080Ω at room temperature) 4. undefined: Check the connecting condition of harness between oven sensor and CN320 of main PCB 5. undefined: Measure resistance of connector CN320 (Open: ∞Ω, Short: under 10Ω)

Samsung Ovens & Ranges

Error Code C-20

Q: What does error code C-20 mean on a Samsung ovens & ranges?

Temperature sensor failure - open circuit Loose connector at main PCB; Loose connector at sensor; Faulty temperature sensor; Damaged or broken wire harness

Temperature sensor failure - open circuit

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: C-20

What This Means

Loose connector at main PCB; Loose connector at sensor; Faulty temperature sensor; Damaged or broken wire harness

What actually causes this:

Wiring disconnected, sensor failed, or PCB connector problem

First Thing to Check

Verify connector CN320 at main PCB is fully seated and check sensor resistance

Parts Involved

Oven sensorMain PCBHarness connector CN320

How to Fix

1
Check whether connector at the main pcb has been inserted
2
Check whether connector at the sensor has been inserted
3
Measure sensor resistance (should be 1080Ω at room temperature)
4
Check the connecting condition of harness between oven sensor and CN320 of main PCB
5
Measure resistance of connector CN320 (Open: ∞Ω, Short: under 10Ω)