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◆Trouble-Shooting
Fault
Cause Analysis
Air conditioner does not run.
• Power failure?
• Circuit protection device tripped?
• The voltage is too high or too low?
(
Refer to Page 15). (To be tested by
professional technicians).
• Timer function is correctly used?
(
Refer to Page 7).
Air conditioner is poor in cooling (or heating) effect.
• Is temperature setting proper? (
Refer to Page 7)
• Is the air inlet or outlet of outdoor unit blocked?
• Is the air filter clogged by dust? (
Refer to Page
10).
• Are all doors and windows closed?
• Is air flow set to “LOW FAN”?
• Is any other heating source in the room?
Remote control cannot execute control.
• Remote control sometimes cannot execute control if
the air conditioner is subject to abnormal interference
or frequent switching of functions. To resume normal
operation, just pull out the battery and reinsert it
properly.
• Is remote within receivable range or blocked by any
obstacles? (
Refer to Page 7)
• Check the battery in remote control for power level.
If low power, replace the battery. (
Refer to Page
9)
• Is the remote control is damaged.
Water leaks from indoor unit.
• Room air humidity is excessively high.
• Condensation water overflowing.
• Connection of indoor unit drain pipe is leaking.
Water leaks from outdoor unit.
• Under cooling mode, water might condense on pipe
or pipe joint due to cooling.
• Defrosted water flows out under heating or defrost
(auto defrost) mode.
• Under cooling mode, water attached on heat
exchanger will drip.
Indoor unit has unusual noise.
• The sound that the fan or compressor relay is
switching (close/open).
• Air conditioner may give out sounds under defrost
or when it is stopped. This is caused due to inverse
flow of refrigerant in the unit.