LG LDG3015SB Service Manual page 61

CHECKING FLOW CHART BY FAILURE
Oven does not heat (including F-9, F-19 Error)
2
Normal?
Yes
Connect the power
Check the value of Thermister by using the test mode
• To enter the test mode, follow these steps:
1. press the "CLEAR" key
2. press the "UPPER BAKE"," UPPER BROIL" key at the same time for one second
3. press the "UPPER BAKE"," UPPER BROIL" key at the same time again.
4. press the NUM "3" key
Normal :the sensor value is from 70˚F to 90˚F at 25˚C.
3
No
Replace the error heater
END
GS : FB4125 Option
10-7
UPPER SENSOR
LOWER SENSOR