Lennox LM012CI-120V432-X Owner's Manual page 23

Malfunction analysis
Error Code
● When air conditioner status is abnormal, temperature indicator on indoor unit will
ation of error code.
Error code
U8
H6
H3
E1
E5
E8
C5
F0
F1
F2
Note: If there're other error codes, please contact qualified professionals for service.
WARNING
■ When below phenomenon occurs, please turn off air conditioner and discon-
for service.
● Power cord is overheating or damaged.
● There's abnormal sound during operation.
● Air switch trips off frequently.
● Air conditioner gives off burning smell.
● Indoor unit is leaking.
■ If the air conditioner operates under abnormal conditions, it may cause
It can be eliminated after restarting the unit. If not, please
It can be eliminated after restarting the unit. If not, please
It can be eliminated after restarting the unit. If not, please
contact qualified professionals for service.
It can be eliminated after restarting the unit. If not, please
contact qualified professionals for service.
It can be eliminated after restarting the unit. If not, please
It can be eliminated after restarting the unit. If not, please
contact qualified professionals for service.
Troubleshooting