40
TM-FT
-0415-B
8. Troubleshooting
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.
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1
The air conditioner unit will not resume after
power failure.
• The auto restart function is not functioning. Please
turn on the unit with the wireless / wired controller.
2
The compressor does not operate 3 minutes
after the air conditioner unit is started.
• Protection against frequent starting.
• Wait for 3 or 4 minutes for the compressor to start
operating by it self.
3
The airflow is too slow or room cannot be
cooled sufficiently.
• 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.
4
Discharge airflow has bad odor.
• Cigarettes, smoke particles, perfume and others,
which might have adhered onto the coil, may
cause odor.
• Contact your nearest dealer.
5
Condensation on the front air grille of the indoor
unit.
• 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.
6
Water flowing out from the air conditioner.
• Switch off the unit and contact your nearest
dealer. This might be due to tilted installation.
7
Hissing airflow sound from the air conditioner
unit during operation.
• Liquid refrigerant flowing into the evaporator coil.
8
The wireless controller display is dim.
• The batteries are discharged.
• The batteries are not correctly inserted.
• The assembly is not good.
9
Compressor operates continuously.
• Dirty air filter. Clean the air filter.
• Temperature setting too low (cooling). Use higher
temperature setting.
10 No cool air comes out during cooling cycle.
• Temperature setting too high (cooling). Use lower
temperature setting.
