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Solution 

Clean the heat exchanger. 
Clean the air filter. 
Eliminate all dirties and make air 
smooth. 
Close doors and windows. 
Make curtains in order to shelter from 
sunshine. 
Reduce heat source. 
AC cooling capacity reduces (normal). 
Check leakage and rightly recharge 
refrigerant. 

Causes 

Unit does not start  

Air flowing normally but 
completely can't  cooling 

Power failure. 
Power switch is off. 
Fuse of power switch may have burned. 
Batteries of remote controller exhausted 
or other problem of controller. 

Temperature is not set correctly. 
Be in 3 minutes protection of 
compressor. 

Refrigerant is too little or too much. 
Air or no concreting gas in the 
refrigerating circuit. 
Compressor is malfunction. 
Voltage is too high or too low. 
System circuit is blocked. 
 

Outdoor unit and indoor unit heat 
exchanger is dirty. 
The air filter is dirty. 
Inlet/outlet of indoor/outdoor units is 
blocked. 
Doors and windows are open 
Sunlight directly shine. 
Too much heat resource. 
Outdoor temp. is too high. 
Leakage of refrigerant or lack of 
refrigerant. 

Wait for the comeback of power. 
Switch on the power. 
ReplLocation: 
Replace the batterises or check the 
controller. 

 

Set the temperature properly. 
Wait. 

Check leakage, and rightly recharge 
refrigerant. 
Vacuum and recharge refrigerant. 
Maintenance or change compressor. 
Install manostat. 
Find reasons and solution. 

Use heating device. 
Close doors and windows. 
Check leakage and rightly recharge 
refrigerant. 

Outdoor temperature is lower  than 7 C 
Doors and windows not completely 
closed. 
Leakage of refrigerant or  lack of 
refrigerant. 

Table 7-1 

Units start or stop frequently 

Low cooling effect 

Low heating effect 

Air flowing normally but 
completely can't  cooling 

Unit does not start  

Symptoms 

7

owner's manual 

Summary of Contents for SYSVRF Mini

Page 1: ...SYSVRF Mini Outdoor unit Mini VRF OWNER MANUAL GB...

Page 2: ...air inlet air outlet Fig 1 All the pictures in this manual are for explanation purpose only They may be slightly different from the air conditioner you purchased depend on model The actual shape shal...

Page 3: ...t in injury or damage to the equipment Failure to observe a warning may result in death The appliance shall be installed in accordance with national wiring regulations Do not use the air conditioner f...

Page 4: ...ay with the appliance When capacity of indoor unit greater than the sum of 100 capacity of indoor unit will be attenuated When capacity of indoor unit greater than or equal to the sum of 120 in order...

Page 5: ...peration immediately Power comes again The lamp on the display panel of indoor unit flashes And then unit will auto restart Mishandling in operation If mishandling happens because of lighting or mobil...

Page 6: ...layed in the Control Panel Those Indoor Units which are running on Heating Mode will run continuously If the Air Conditioner Administrator has set running mode then the air conditioner can not run on...

Page 7: ...protection between the real and the setting speed Typhoon protection Indoor evaporator hi tempprotection Low pressure protection Hi pressure protection Inverter module protection Compressor discharge...

Page 8: ...is heard when the system is in cooling operation or at a stop When the drain pump optional accessories is in operation this noise is heard A pishi pishi squeaking sound is heard when the system stops...

Page 9: ...it and indoor unit heat exchanger is dirty The air filter is dirty Inlet outlet of indoor outdoor units is blocked Doors and windows are open Sunlight directly shine Too much heat resource Outdoor tem...

Page 10: ...button is pressed Check whether the signal transmitter of the remote controller is properly directed to the infrared signal receiver of the indoor unit when the ON OFF button is pressed Directly trans...

Page 11: ......

Page 12: ...SYSVRF AIR EVO HP Mini_OM EN December 2015 202000171547 Certified www systemair com www systemair ru...

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