LG LSEL6335F Service Manual page 74

CHECKING FLOW CHART BY FAILURE
Main oven sensing error  F-1, F-2 error
Sensing Fail, F1, F2?
Unplug the unit
1
Is the Connector
disconnected or loose?
(1) Sensor connection
(2) CN10 of Main PCB
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Reconnect
Yes
or adjust the
connection
Sensor connection
CN06
No
Plug in the unit
2
Is the value of thermistor
normal? (Refer below)
Check with the test mode
To enter the test mode, follow these steps:
1. Press the any button, and Mode knob is
placed in the Off
2. Press the "4" and "6" key at the same time for
1 second.
3. Press the "4" and "6" key at the same time for
1 second again.
4. Press the "3" key.
Normal : Thermistor value at room temp is from
70˚F to 90 F
˚
10-13
Yes
Go to No 4
Current temp
No