Error Code C-20
Oven sensor is open when the oven is operating
Moderate
Address soon - your appliance may not work properly
What This Means
Connector at main PCB not inserted; Connector at sensor not inserted; Temperature sensor failed; Main PCB failed; Damaged wire harness at oven sensor connector or CN320 of main PCB
How to Fix
- 1
Check whether connector at the main PCB (CN320) has been inserted
- 2
Check whether connector at the sensor has been inserted
- 3
If connectors at Main PCB and sensor are inserted correctly, replace the temperature sensor
- 4
If problem still not solved, replace the Main PCB
- 5
Disconnect power; measure sensor resistance (1080 ohms at room temperature)
- 6
Check connector condition of wire harness (oven sensor connector and CN320 of main PCB)
- 7
Measure resistance of connector CN320 at Main PCB (Open: infinite ohms, Short: under 10 ohms)
- 8
Make sure circuit board, soldered joints or related parts on Main PCB have not been damaged; repair or replace Main PCB if necessary
This Error Applies To
Samsung NV51R5511D Series Ovens & Ranges (2019) (2019–present)
Related Error Codes
Power connection is installed improperly
PCB temperature rises abnormally high
Keys are shorted
Communication between Main and Sub PCB is interrupted
Door lock is mispositioned
Upper cooling motor is operating abnormally
Communication between Main and Touch PCB is interrupted
PCB temp sensor is open or shorted when the oven is operating