LG R410A Service Manual page 134

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