Error Code C-20
Oven sensor opened (over 2950Ω) or shorted (under 930Ω)
Moderate
Address soon - your appliance may not work properly
What This Means
Open oven temperature sensor; Shorted oven temperature sensor; Damaged sensor harness; Poor connector connections; Defective Main PCB
How to Fix
- 1
Disconnect power and open back cover
- 2
Disconnect sensor harness from control
- 3
Measure sensor resistance: 1080Ω at room temperature
- 4
If abnormal resistance, replace oven sensor
- 5
Check connector harness condition (Oven sensor and CNS301 on Main PCB)
- 6
Measure connector CNS301 resistance on Main PCB (Normal: 2850Ω)
- 7
Reconnect all harnesses
This Error Applies To
Samsung NX58M6850S Series Ovens & Ranges
Related Error Codes
Oven heating over - temperature exceeds safe limits
PCB sensor opened or shorted - Oven sensor error
PCB temperature too high - Safety error
Shorted key - Keypad malfunction
Door lock malfunction - Lock motor or switch error
Main to Sub PCB communication error - Continuous communication failure between Main PCB and Sub display/fan control PCB
Main to Touch PCB communication error - Communication failure between Main PCB and Touch control panel
BLDC motor operation error - Cooling fan or air intake motor malfunction