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Maintenance
7.5 Troubleshooting
a
CAUTION DANGER
If any of the following conditions occur, switch the unit off immediately.
– The power cable is damaged or unusually hot.
– You can smell burning.
– The unit makes loud or abnormal noises.
– A fuse blows or the circuit breaker trips frequently.
– Water or other substance have fallen into the unit, or water or other substance have leaked from the unit.
DON'T TRY TO SOLVE THE PROBLEM YOURSELF. IMMEDIATELY CONTACT AN AUTHORISED SERVICE
CENTRE.
7.5.1 Common problems
The problems described below do not represent malfunctions and, in most cases, do not require repair.
Problem Possible causes
The unit does not switch
on when the ON/OFF
button is pressed
- In order to protect some of the system’s components, the system intentionally starts
or restarts with a delay of up to 12 minutes under certain operating conditions. If the
OPERATION LED lights up on the unit’s panel, the system will operate normally and the
unit will start after the intentional delay has finished.
- The heating mode works, if the “DEF./FAN” LED lights on the panel are on, the indoor
unit activates protective measures due to low leaving temperature.
The indoor unit emits a
white haze
- In humid regions, a marked difference in temperature between the air in the room and
the air conditioning can cause a white mist to form. The phenomenon ceases when the
humidity in the room is restored to normal levels.
Both the indoor and
outdoor units emit a white
haze
- When the unit restarts in Heating mode after a defrosting cycle, it may emit a white haze
due to moisture generated by the defrosting process.
Indoor or outdoor unit
emits dust
- During a long period of non-use, dust may accumulate on the unit and be emitted when
it is turned on again. This problem can be partly solved by covering the unit during
prolonged periods of inactivity.
The unit smells bad
- The unit may absorb ambient odours (furniture, cooking, cigarettes, etc.) and emit them
during operation.
- Mold has formed on the unit's filters and must be removed.
Operation is erratic or
unpredictable, or the
unit does not respond to
commands
Interference from mobile phone repeaters and remote amplifiers may cause the unit to
malfunction.
In this case, try to solve the problem as follows:
- Disconnect the unit from the power mains and then reconnect it.
- Press the ON/OFF button on the remote control to restart operation.
NOTE: if the problem persists, contact your local dealer or nearest service centre, providing a detailed description of the malfunction
and specifying the model code.
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