Troubleshooting - Acson ART 55 A Technical Manual

When a malfunction of the air conditioner unit is detected, immediately switch off the main power supply before
proceeding with the following troubleshooting procedures.
The following are common fault conditions and simple troubleshooting tips. If any other fault conditions which are
not listed occur, contact your nearest local dealer. DO NOT attempt to troubleshoot the unit by yourself.
No Fault conditions
1 The air conditioner unit will not resume after
power failure.
2 The compressor does not operate 3 minutes
after the air conditioner unit is started.
3 The airflow is too slow or room cannot be
cooled sufficiently.
4 Discharge airflow has bad odor.
5 Condensation on the front air grille of the indoor
unit.
6 Water flowing out from the air conditioner.
7 Hissing airflow sound from the air conditioner
unit during operation.
8 The wireless controller display is dim.
9 Compressor operates continuously.
10 No cool air comes out during cooling cycle, or
no hot air comes out during heating cycle.
11 On heating cycle, warm air does not come out.

12. TROUBLESHOOTING

Possible causes / corrective actions
The auto restart function is not functioning. Please
turn on the unit with the wireless / wired controller.
Protection against frequent starting.
Wait for 3 or 4 minutes for the compressor to start
operating by it self.
The air filter is dirty.
The doors and windows are opened.
The air suction and discharge of both indoor and
outdoor units are clogged or blocked.
The regulated temperature or temperature setting
is not low enough.
Cigarettes, smoke particles, perfume and others,
which might have adhered onto the coil, may
cause odor.
Contact your nearest dealer.
This is caused by air humidity after an extended
period of operation.
The set temperature is too low. Increase the
temperature setting and operate the unit at high
fan speed.
Switch off the unit and contact your nearest
dealer. This might be due to tilted installation.
Liquid refrigerant flowing into the evaporator coil.
The batteries are discharged.
The batteries are not correctly inserted.
The assembly is not good.
Dirty air filter. Clean the air filter.
Temperature setting too low (cooling). Use higher
temperature setting.
Temperature setting too high (heating), Use lower
temperature setting.
Temperature setting too high (cooling). Use lower
temperature setting.
Temperature setting too low (heating). Use higher
temperature setting.
Unit is in defrost mode. Heating operation will
resume after defrost cycle ends.
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