8-2 Failure Code Summary - LG LSE4617ST Service Manual

8-2 Failure Code Summary

To use the Smart Diagnosis, Follow the instruction on the smart phone.
Code Description
Sensor open
F1
Sensor short
F2
Key short
F3
Oven hot
F6
Oven
F9
No heating
Door Lock Fail
F10
Comm. Error
F11
LF Top Sensor
CF1
Open/Short
LR Top Sensor
CF2
Open/Short
RF Top Sensor
CF3
Open/Short
RR Top Sensor
CF4
Open/Short
TROUBLESHOOTING
Explanation
Oven Thermistor is open
Oven Thermistor is shorted.
1. If '25 key short' occurred 3 times in 90
seconds.
2. If communication is impossible with Touch IC
more than 60 seconds
The oven temperature is over 650 ˚F
continuously during 2 minutes on cooking except
self cleaning.
EXCEPT PROOF and WARM
Starting temperature of 130 ˚For less, and the
oven door is closed, the oven inside temperature
does not go up more than 10˚F compared with
the starting temperature for 5minutes after the
start of cooking.
In case of Door Lock Failure during operating
Lock motor.
The Communication Error Happened
Between Cooktop PCB and Oven PCB
Over 10 seconds in the self clean mode.
LF Top Sensor is Open or Short
LR Top Sensor is Open or Short
RF Top Sensor is Open or Short
RR Top Sensor is Open or Short
8-2
Check point
1. Wiring
2. Oven Sensor
1. Wiring
2. Oven Sensor
1. Wiring
2.Touch PCB
Oven Sensor
1. Electric Wiring
2. Oven Sensor
1. Electric Wiring
2. Motor's Resistance
3. Micro Switch
1. Electric Wiring
2. Check the PCB
1. Check the Top Sensor
Connect(Open)
2. Check The Top Sensor
Resistance(Short
1. Check the Top Sensor
Connect(Open)
2. Check The Top Sensor
Resistance(Short
1. Check the Top Sensor
Connect(Open)
2. Check The Top Sensor
Resistance(Short
1. Check the Top Sensor
Connect(Open)
2. Check The Top Sensor
Resistance(Short