Samsung NE59J7630SS Service Manual page 31

4. Troubleshooting
4-1 Information Display Codes
Check code
"C-21"
Disconnect power and main PCB
* Check the DLB, Bake and Broil relay.
(Nomal:
* Check whether there is any damaged
parts of PCB pattern.
Ok
* Measure oven sensor resistance.
* Check the connecting condition of
harness related with oven sensor.
Ok
* Check connector and harness connected to PCB.
* Check whether harness on connector
Ok
With replacing main PCB, and make set work.
END
Bake Relay
DLB Relay Broil Relay
Sub PCB Main PCB
* Replace main PCB
No
* Solder again if pattern is damaged
or parts is wrong contacted.
No
*Reconnect after replacing the oven
sensor.
No
Replace or repair the harness.
No
Replace main PCB
31
Convection Relay
END
END