Error Code C-20
Oven sensor open (over 2950 ohm) or oven sensor short (under 930 ohm)
Moderate
Address soon - your appliance may not work properly
What This Means
Oven temperature sensor open circuit; Oven temperature sensor shorted; Damaged wire harness between sensor and Main PCB; Faulty Main PCB at connector CN320
How to Fix
- 1
Disconnect power and open back cover
- 2
Disconnect sensor harness from control and measure sensor resistance (normal: 1080 ohm at room temperature)
- 3
If sensor resistance is abnormal, replace oven sensor
- 4
Check wire harness terminals for damage and reconnect or repair
- 5
Measure resistance of oven sensor connector CN320 on Main PCB with harness disconnected (normal: 2850 ohm)
- 6
If PCB resistance is abnormal, check PCB pattern and soldering; repair or replace Main PCB
This Error Applies To
Samsung DOP36M96GL Series Ovens & Ranges (2019) (2019–present)
Related Error Codes
PCB sensor temperature high — onboard PCB NTC thermistor reading abnormally high temperature
Short key — short circuit detected at control interface at connector CN300 on Main PCB or Sub PCB
Door locking information — door lock motor or switch malfunction
Oven internal overheating — oven temperature reaches 650 F (343 C) in any cooking function except self-clean
PCB sensor opened or PCB sensor shorted (onboard NTC thermistor fault)
Main PCB to Sub PCB communication error