Error Code C-21

Oven sensor shorted / Oven heating over

What This Means

Failed oven sensor; Broil heater failure; Bake heater failure; Convection heater failure; DLB relay failure; Main PCB failure; Harness disconnection

How to Fix

1. 1

   Disconnect power and open back cover

2. 2

   Disconnect sensor harness from control and measure sensor resistance (1080Ω at room temperature)

3. 3

   Check broil, bake and convection heater resistance values

4. 4

   Check DLB of sub PCB relay operation

5. 5

   Check harness connections to main PCB

6. 6

   Measure oven sensor connector resistance on main PCB (Normal: 2850Ω)