Error Code C-21

Oven heating over (oven overheating)

What This Means

Faulty oven sensor; Faulty broil, bake, or convection heater; Faulty heater relay; Damaged wire harness; Faulty PCB

How to Fix

1. 1

   Disconnect power and open back cover

2. 2

   Measure sensor resistance (should be 1080 ohms at room temperature)

3. 3

   Check broil, bake, and convection heater resistance

4. 4

   Check DLB, Broil, Bake, and Convection heater relay operation

5. 5

   Check CNS600 connectors on Main PCB for proper connection

6. 6

   Check wire harness for damage

7. 7

   If all components check normal, replace Main PCB

This Error Applies To

Samsung NX60A6751 Series Ovens & Ranges