How do I fix error code C-20 on a Samsung ovens & ranges?

1. undefined: Disconnect power and open the back cover 2. undefined: Disconnect sensor harness from control 3. undefined: Measure sensor resistance: normal is 1080 ohms at room temperature; replace sensor if out of spec 4. undefined: Check for damaged terminal or wire harness 5. undefined: Measure resistance of oven sensor connector on Main PCB at CNS600 (Pin 4,6): normal is 2850 ohms 6. undefined: Repair or replace damaged harness 7. undefined: Replace Main PCB if problem persists after confirming sensor and harness are good

Samsung Ovens & Ranges

Error Code C-20

Oven sensor open (resistance over 2950 ohms) or shorted (resistance under 930 ohms)

Moderate

Address soon - your appliance may not work properly

What This Means

Oven temperature sensor open or shorted; Damaged terminal or wire harness between sensor and PCB; Faulty Main PCB connector CNS600

How to Fix

1
Disconnect power and open the back cover
2
Disconnect sensor harness from control
3
Measure sensor resistance: normal is 1080 ohms at room temperature; replace sensor if out of spec
4
Check for damaged terminal or wire harness
5
Measure resistance of oven sensor connector on Main PCB at CNS600 (Pin 4,6): normal is 2850 ohms
6
Repair or replace damaged harness
7
Replace Main PCB if problem persists after confirming sensor and harness are good