Samsung Ovens & Ranges
Error Code C-21
Oven heating over / Oven overheating
Moderate
Address soon - your appliance may not work properly
What This Means
Faulty bake or broil heater; Defective relay; Damaged wire harness; PCB malfunction
How to Fix
- 1
Check broil, bake, and convection heater resistance values
- 2
Check DLB, Broil, Bake, and Convection heater relay operation
- 3
Check for wire harness damage to main PCB
- 4
Measure oven sensor resistance (should be 1080 ohms)
- 5
Measure voltage at PCB terminals TB201-TB204 (Bake) or TB201-CN202 (Broil)
- 6
Replace PCB if relays are faulty
This Error Applies To
Samsung NX60CB831512 Series Ovens & Ranges
Service manual exact match: NX60CB831512