Error Code C-20
Oven temperature sensor open (resistance over 2950 ohms) or shorted (resistance under 930 ohms)
Moderate
Address soon - your appliance may not work properly
What This Means
Defective oven temperature sensor; Damaged wire harness between sensor and main PCB; Poor connector at CNS300 on main PCB; Damaged PCB traces or solder joints related to oven sensor
How to Fix
- 1
Disconnect power to the range
- 2
Open the back cover and disconnect sensor harness from control PCB at CNS300
- 3
Measure sensor resistance; expect approximately 1080 ohms at room temperature
- 4
If sensor resistance is above 2950 ohms the sensor is open – replace sensor
- 5
If sensor resistance is below 930 ohms the sensor is shorted – replace sensor
- 6
If resistance is within range inspect harness and PCB connector CNS300 for damage
- 7
Reconnect or repair damaged harness
- 8
If PCB traces or solder joints are damaged around the oven sensor circuit repair or replace main PCB
This Error Applies To
Samsung NX60A6711 Series Ovens & Ranges (2023) (2023–present)