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4. Troubleshooting
4-2 Failure Display Codes
Oven Sensor information
Information code
Meaning
Solution
C-20
Oven sensor opened
(over 2950Ω)
1 .
Disconnect power . Open the back cover .
Disconnect sensor harness from control Measure sensor
resistance :1080Ω at the room temperature
→ If there are any problems, replace oven sensor.
2 .
If no problem with the oven sensor is found, Please check
for damaged terminal or wire on harness .
3 .
Check resistance of oven sensor connector on Main PCB
(Normal:2850Ω)
Oven sensor shorted .
(Under 930Ω)
“C-20”
Disconnect power .
Measure sensor resistance .
(1080Ω at the room temperature)
Check the connecting condition of harness .
(Oven sensor and CNS301 of Main PCB)
Measure resistance of connector CNS301
of Main PCB. (Nomal : 2850Ω)
Check for damaged connectors, board
pattern, soldered joins or components related
to oven sensor on Main PCB, and repair them
or replace Main PCB according to case .
END
Replace oven sensor .
END
* Reconnect .
* Repair damaged harness
replace .
oven sensor
PCB MAIN
CNS301