LG LRG4111ST Service Manual page 62

3
Is the DLB relay normal?
Measure the resistance
Normal: infinite
Abnormal : shorted
Tab 62(or Tab61)
and Tab 60 : RY60
TROUBLE SHOOTING
No
Replace the
Main PCB
DLB
Relay
Yes
Plug in the unit
4
Is the value of thermistor
normal? (Refer below)
Check with the test mode
To enter the test mode,
follow these steps:
(1) press the CLEAR button
(2) press the BAKE and
BROIL buttons at the same time.
(3) press the BAKE and
BROIL buttons at the same time again.
(4) press the NUM 3 button
Normal : Themistor value at room temp is from
70˚F to 90 F
˚
8-15
No
Replace the
Main PCB
Current Oven temp