Midea CLIVET CRISTALLO, Instruction Manual For Installation, Use And Maintenance

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Maintenance
4.6 Troubleshooting
a
CAUTION DANGER
If any of the following conditions occur, turn the unit off immediately.
– The power cord 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.
4.6.1 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 turn on
when the ON/OFF button is
pressed
- The unit has a 3-minute delay protection feature that prevents overloading. The unit
cannot be restarted until three minutes have elapsed since shutdown.
The unit switches from
Cooling/Heating mode to
Ventilation mode
- The unit can change operating mode to prevent frost formation. As the temperature
rises, the unit will return to the previously set mode.
- The set temperature has been reached and the compressor has switched off. The unit
will continue to operate in response to temperature changes.
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.
Both the indoor and outdoor
units emit a white haze
- When the unit restarts in Heating mode after a defrost cycle, it may emit a white haze
due to moisture generated by the defrost process.
The indoor unit is noisy
- An air current noise is heard when the ventilation louver returns to its original position.
- You will hear a crackling sound after the Heating mode is activated due to the
expansion and contraction of the plastic parts of the unit.
Both the indoor and
outdoor units are noisy
- Slight hissing during operation: this noise is normal and is due to the circulation of
refrigerant gas in the indoor and outdoor units.
- Slight hissing when the system starts up, immediately after shutdown or during
defrosting: this noise is normal and is caused by stopping or changing the direction of
the refrigerant gas.
- Cracking: due to normal expansion and contraction of plastic and metal parts caused
by temperature changes during operation.
The outdoor unit is noisy - The unit emits various noises depending on the operating mode in use.
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.
The fan of the outdoor unit
is not working
- During operation, fan speed is controlled to optimize the operation of the air conditioner.
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 number.