Unit Does not start
Causes:
- Power failure
- Power Switch is Off
- Fuse of Power Switch may have burned
- Batteries of remote controller exhausted or other problem of
- controller
Solution:
- wait for the comeback of power
- Switch on the power
- Replace
- Replace the batteriess or check the controller
Air flowing normally but completely can’t cooling
Causes:
- Temperature is not set correctly
- Be in 3 minutes protection of compressor
Solution:
- Set the Temperature properly
- wait
Units start or stop frequently
Causes:
- Refrigerant is to little or too much
- Air or no concretingc gas in the refrigerating circuit
- Compressor is malfunction
- Voltage is too high or too low
- System Circuit is Blocked
Solution:
- Check leakage, and rightly recharge refrigerant
- Vacuum and recharge refrigerant
- Maintenance or change compressor
- Install manostal
- Find reasons and solution
Low Cooling Effect
Causes:
- 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
Solution:
- Clean the heat exchanger
- Clean the air filter
- Eliminate all dirties and make air smoth
- Close doors and windows
- Make curtains in order to shelter from sunshine
- Reduce heat source
- AC cooling capacity reduce (normal)
- Check leakage and rightly recharge refrigerant
Low heating effect
Causes:
- Outdoor temerature is lower than 7C
- Doors and windows not completely closed
- leakage of refrigerant or lack of refrigerant
Solution:
- Use heating device
- Close doors and windows
- Check leakage and rightly recharge refrigerant
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