LG ARNU Series, Service Manual

Page: 134 / 226

Troubleshooting Guide
134 Indoor Unit
Indoor unit
related error
Error
Code
Error Contents Meaning Main Causes
Error display
position
10
Failure of the fan motor
operation
Concerned
Remote controller
Panel Display
Disconnecting the fan motor connec-
tor / failure
■
Burn out of PCB within the motor etc.
■
The fan is locked by an interference
with another object.
■
Failure capacitor part (TD chassis)
➀ ➃ ➄ ➅ ➆
3) Disconnected or crushed wired
2) Remove housing terminal
1) Remove motor connector
■
PCB indoor unit
■
Unlock by reassembling etc.
■
Turn the fan with hand and check
whether it is locked
1) Check with naked eye
2) Check with naked eye
3) Check with naked eye
■
Repair or exchange motor
■
Exchange motor
■
Check the resistance value of
each terminal with the tester
■
Check the resistance of both
ends of the capacitor (Normal :
∞
)
■
Exchange capacitor
■
Exchange capacitor
Checking method
Measures
√
fl
∞°
Cause of problem Checking method Measures
Normal resistance (
±
10% )
+ -
TH chassis TD chassis
➃
➃
➃
➃ ➀
➄
➅
➆
Tester
∞ ∞
102k
Ω
5M
Ω
~ 30M
Ω
∞ ∞
235k
Ω
251k
Ω