LG LRE3085ST User Manual

9-8
CHECKING FLOW CHART BY FAILURE
3
Yes
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”, “BROIL” button at
the same time
3. press the “BAKE”, “BROIL” button at
the same time again.
Software version is displayed at the left digits
4. press the NUM “3” button
Normal : Themistor value at room temp is from
70˚F to 90
˚ F as the above figure.
Yes
Go to No 6
4
No
Range Of the resistance
Plug the unit
Is the resistance of
thermistor normal?
Check:
Pins 1and 2 of CN13 in main PCB
Normal- approximately 1.09kΩ at 25˚C
No
Replace the
defected
Themistor
5
Yes
Unplugged the unit
CN13
6
Replace the Relay PCB
If the unit does NOT work even though the
Relay PCB change, you should replace the
Main.
Heater Resistance[
Ω
]
Approximately
Broil (Inner) 50
Broil (Outer) 10
Convection 82
Bake 14.5

LG LRE3085ST Specifications

General

Brand	LG
Model	LRE3085ST
Category	Ranges
Language	English