Sinclair ASH-18AIN PT, User Manual, Page: 16 / 25

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Trouble-Shooting
Fault Cause Analysis
If power failure?
If circuit protection device has tripped?
If the voltage is too high or too low?
(To be tested by professional technicians).
If timer function is correctly used?
If temperature setting is proper?
If air inlet or outlet of outdoor unit is blocked?
If air filter is clogged by dust?
If all doors and windows are closed?
If air flow is set to “LOW FAN”?
If any other heating source in the room?
Remote controller sometimes cannot execute
control if the air conditioner is subject to
abnormal interference or frequent switch of
functions. To resume normal operation, just
pull out the power and reinsert it properly.
If within receivable range or blocked by any
obstacles?
Check the battery in remote controller for
power level. If low power, replace the battery.
If the remote controller is damaged.
Water leaks from indoor unit.
Air humidity is high.
Condensing water overflows.
Joint of indoor unit drain pipe is loose.
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 gives out 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.
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Air conditioner does not run.
open
Air conditioner is poor in cooling (or heating) effect.
Remote controller cannot execute control.