How do I fix error code C-21 on a Samsung ovens & ranges?

1. undefined: Disconnect power 2. undefined: Check DLB, Bake and Broil relay (should show infinity ohms) 3. undefined: Measure oven sensor resistance (should be 1080 ohms at room temperature) 4. undefined: Check each heater resistance 5. undefined: Inspect harness connections at CNS300 on Main PCB 6. undefined: Replace Main PCB if relays or connections are faulty

Samsung Ovens & Ranges

Error Code C-21

Q: What does error code C-21 mean on a Samsung ovens & ranges?

Oven heating over / Oven temperature too high Defective oven sensor; Faulty broil, bake, or convection heater; Defective heater relay (DLB, Broil, Bake, Convection); Damaged wire harness

Oven heating over / Oven temperature too high

Moderate

Address soon - your appliance may not work properly

What This Means

Defective oven sensor; Faulty broil, bake, or convection heater; Defective heater relay (DLB, Broil, Bake, Convection); Damaged wire harness

How to Fix

1
Disconnect power
2
Check DLB, Bake and Broil relay (should show infinity ohms)
3
Measure oven sensor resistance (should be 1080 ohms at room temperature)
4
Check each heater resistance
5
Inspect harness connections at CNS300 on Main PCB
6
Replace Main PCB if relays or connections are faulty

This Error Applies To

Samsung NX60A6311 Series Ovens & Ranges

Service manual exact match: NX60A6311

Related Error Codes

C-d1

Door locking information / Door lock malfunction

C-F2

Sub-to-Touch communication error / Control panel communication malfunction

C-20

Oven sensor opened

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