Error Code C-21

Oven heating over / Broil or bake heater failure

What This Means

Oven sensor failure; Broil or bake heater malfunction; DLB relay failure; Main PCB defect; Disconnected harness

How to Fix

1. 1

   Disconnect power and open back cover

2. 2

   Disconnect sensor harness and measure sensor resistance

3. 3

   Check broil and bake heater resistance values

4. 4

   Check DLB of main PCB and heater relays operation

5. 5

   Check for harness disconnection on main PCB

6. 6

   Measure oven sensor connector resistance on main PCB

7. 7

   Replace relay, PCB, or sensor as needed

This Error Applies To

Samsung NE58K9430S Series Ovens & Ranges