Error Code C-20
Oven temperature sensor open circuit (resistance over 2950 ohms) or shorted (resistance under 930 ohms)
Moderate
Address soon - your appliance may not work properly
What This Means
Broken or damaged oven temperature sensor; Disconnected sensor harness; Damaged terminal or wire harness; Poor sensor connector connection
How to Fix
- 1
Disconnect power and open the back cover
- 2
Disconnect sensor harness from control unit
- 3
Measure sensor resistance (should be 1080Ω at room temperature)
- 4
If resistance is incorrect, replace oven sensor
- 5
Check for damaged terminals or wire harness
- 6
Verify connector CN100 of Sub PCB (Normal: 1080Ω)
This Error Applies To
Samsung NX60T8511S Series Ovens & Ranges (2022) (2022–present)
Related Error Codes
Door lock malfunction — door locking mechanism not operating correctly
Oven overheating — oven temperature is rising excessively beyond set point
Sub PCB to touch panel communication error — touch IC and PCB signal malfunction
Ambient temperature of display PCB is extremely high — control board overheating due to cooling fan failure
Oven vent blocked — airflow obstruction detected at oven vent or cover air outlet