381 

No.283 The wind direction adjustment is abnormal   

 

No.284 The blower is in poor operation   

 

 
 

 

 

382 

No.285 Vehicle interior air conditioning is in poor condition   

 

 
 

 

 

383 

No.286 Vehicle interior central heating is in poor condition   

 

No.287 Night light regulation function of the a/c controller is invalid   

 

 
 

 

 

384 

No.288 The compressor is out of service   

 

No.289 Effect of the air conditioning is in poor condition (check it per 

the content in the following table) 

 

Phenomena and state 

Analysis of causes 

Solution 

1. There is too much air mixed in the system.   

Vacuumize again and refill the refrigerant. 

2. Too much refrigerant filled.   

Discharge the surplus refrigerant.   

3. Too much lubrication oil.   

Check or replace, discharge the surplus 
lubrication oil.   

4. The heat emission effect of condenser is poor.   

Clean the dirt on the condenser surface or 
replace with a new condenser.   

Both high pressure and 
low pressure are too high 

5. The cooling fan common used by the condenser and 
the water tank is abnormal.   

Check it or replace with a new cooling fan. 

1. There is insufficient refrigerant filled.   

Add the filling volume of the refrigerant.   

2. The refrigerant is leaking.   

Make the leak check and replace the 
leaked spare.   

Both high pressure and 
low pressure are too low 

3. The O-ring is damaged.   

Replace the O-ring.   

1.    The expansion valve is in over size opening or is 
damaged.  

Adjust the opening of the expansion valve 
or replace with a new expansion valve.   

2.    Too much refrigerant filled.   

Discharge the surplus refrigerant.   

The high pressure is 
normal and the low 
pressure is too high 

3.  Something wrong with the compressor.   

Replace the compressor.   

1. Insufficient refrigerant filled.   

Add the filling volume of the refrigerant.   

2.    The expansion valve is ice blocked.   

Replace with a new liquid storage drying 
bottle.

The high pressure is 
normal and the low 
pressure is too low 

3. Dirt on the evaporator surface or has clogging inside 
the evaporator.   

Clean the evaporator surface or replace 
with a new evaporator.