LG LDG4313BD Service Manual page 58

2. Failure Code Summary
Code Description
F1 (Upper) Sensor open
F4 (Lower)
F2 (Upper) Sensor short
F5 (Lower)
F-3 Key short
F6 (Upper) Oven hot
F16 (Lower)
F17 (Lower) Conv. Fan
Motor Open
F9 (Upper) Oven
F19 (Lower) No heating
F10 (Upper) Door Lock Fail
F20 (Lower)
TROUBLESHOOTING
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.
During cook, if convection fan does not
operate while 1 minute (cumulative time) in
the period of convection fan operation.
EXCEPT PROOF, WARM and EASY CLEAN
Starting temperature of 130 _ or less, and the
oven door is closed, the oven inside
temperature does not go up more than 10_
compared with the starting temperature for
5minutes after the start of cooking.
If Door Lock fails while operating the Lock
motor.
8-2
explanation Check point
1.Wiring
2.Oven Sensor
1. Wiring
2. Oven Sensor
1. .Wiring
2.Touch PCB
Oven Sensor
1. Wiring
2. Motor's Resistance
1. Electric Wiring
2. Oven Sensor
1. Electrical Wiring
2. Motor's Resistance
3. Micro Switch