Trouble Shooting - Sinclair ASE-150AH Service Manual


Use the remote controller or wired controller to let the air conditioner run in the cooling mode.
Inspect the following items according to the operation manual. If any fault occurs, remove the
fault first.

Check the indoor unit:

Whether any vibration or abnormal sound occurs during the operation.

Whether the air, noise and condensate generated by the unit affect the neighbors.

Whether any refrigerant is leaked.

Check whether the connective copper pipes and drain pipes generate condensate due to
loose wrapping.

Open the air inlet grille of indoor unit to check whether any penetration or leak of water
occurs, especially at the drain stopper.

7.Trouble shooting

7.1 Phenomena not attributable to faults of air conditioner
 The system does not run.

After pressing the ON/OFF button, the system does not run immediately.

If the Run indicator is on, it indicates the air conditioner runs in the normal status.

It does not run immediately because the safety device in the system is active to prevent
overload.

Three minutes later, the air conditioner compressor will run automatically.

If the Run indicator and the Defrost/Preheat indicator are on, it indicates the heating
mode is selected. At the beginning after startup, since the compressor does not run,
the temperature of the indoor unit is too low.
 The indoor unit gives out white aerosol.

This phenomenon may occur when the indoor relative humidity is too high and the unit
runs in the cooling mode.

The indoor unit is installed in a place where there is much oil mist or dust. If the internal
stain of the indoor unit is heavy, the temperature in the room will be distributed
unevenly. In the case, the interior of the indoor unit must be cleaned. The cleaning units
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