7.2.11  Loop  of  the station detect error 
Outdoor Display
 
LED1  flash  19  times 
 
Method of 
the position of the compressor rotor can not detected normally
 
Malfunction     
 
Detection 
 
Malfunction      
when the    The wiring of compressor is wrong or the connection is poor; 
 
Decision 
or 
the compressor    is damaged   
Conditions 
 
Supposed         ■  
Faulty  The wiring of compressor  
Causes           ■  
Faulty  compressor 
■ 
Faulty  PCB 
 
Troubleshooting    
* Caution  
Be sure to turn off power switch before connect or disconnect connector,      or 
parts damage may be occurred. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
                        Malfunction 
unsolved 
 
 
 
 
 
 
    
 
 
YES 
YES 
NO 
1. The wiring of compressor is incorrect 
or the connection is poor; 
2. The compressor is damaged 
IPM Module is damaged and needs 
replacing. 
At frist,  the compressor start up ,soon 
the compressor stopped with the LED1 
on the outdoor PCB blinks(1Hz)for 19 
times 
the Malfunctions exist also, . 
The compressor is damaged 
replace a new one 
Within 3 minutes after the machine 
is supplied with power and turned 
on with the remote controller, the 
compressor couldnot stard up 
HSU-18,22HVA103/R2(DB)   Service Diagnosis 
88
            Domestic Air Conditioner