10.5.10 Display CL 
Cause: Air filter duty, the unit operation Cumulative time 500 hours, the controller will confirmation the filter 
dirty and display CL. 
Solution: Clean the air filter then cut off the power and supply again. 
10.6 MALFUNCTION (PARTS) CHECK METHOD
10.6.1 Procedure for determining defective outdoor unit IPM/compressor
The following flow chart shows a procedure for locating the cause of a malfunction when the compressor 
does not  start up and a DC overcurrent indication error occurs. 
 
 
 
Clean indoor or outdoor 
heat exchange 
Clean indoor heat exchange 
and outdoor heat exchange 
Check the refrigerant 
amount 
Check the installation condition 
Use the remote operates 
the air conditioner 
Does the wire 
connects right 
Does low or high press 
valve opened 
Operates again after 3 Mins 
Does indoor unit LED 
display error code. 
Does the wire 
connects right