23
TROUBLESHOOTING
The set temperature
cannot be adjusted.
The temperature you require may exceed the
setting range of the unit.
Set the temperature between a minimum of 16 °C (61 °F) to a
maximum of 30 °C (86 °F).
A function or mode currently enabled may be
preventing the adjustment of the temperature.
Some functions (e.g. Energy-Saving, 8 °C Heating) and oper-
ation modes (e.g. Ventilation) does not allow the user to adjust
the set temperature. First, deactivate the function or change
operation mode, then adjust the set temperature.
No airflow appears to be
coming from the indoor
unit.
The air inlets or outlets of the indoor or outdoor
unit may be obstructed.
Clear away any objects or furniture that could be blocking the
air inlet or outlet of either units.
The indoor ambient temperature may have
reached the set temperature.
When the room temperature reaches the set temperature, the
indoor unit stops blowing out cooled or heated air. No action is
required unless the temperature is not to your liking, in which
case, adjust the set temperature.
Heating mode may have just been selected as
the operation mode.
To prevent cold air from being blown into the room as Heating
mode is started, the indoor unit will delay blowing air for 1 to
5 minutes in order to preheat the air. Wait until the delay has
elapsed.
The indoor unit does
not respond to remote
control commands.
The distance between the indoor unit and the
remote control may be too great.
Get within range of the indoor unit so that the signal from the
remote control can be transmitted successfully.
The remote control may not be properly aligned
with the indoor unit’s signal receiver.
Make sure to be facing the unit as much as possible when
pressing buttons on the remote control.
There may be a fluorescent lamp in the room.
Turn off the fluorescent lamp and try again, or move closer to
the indoor unit.
The indoor unit may be significantly interfered
by static pressure, unstable voltage, etc.
Unplug the power cord, wait for about 3 minutes, reconnect the
power, then turn on the unit and try using the remote control.
There may be objects obstructing the signal
from the remote control.
Remove any possible obstructions between the remote control
and the indoor unit that could be blocking the signal.
The remote control buttons may be inoperative
due to the Control Lock function being enabled.
Deactivate the Control Lock function.
The batteries of the remote control may be de-
pleted.
Replace the depleted batteries with new one.
The efficiency of the
cooling or heating is
very poor.
The dust filter may be dirty.
Check and and clean the dust filter.
The set temperature may not be suitable for the
current outdoor conditions.
Set the temperature to be higher or lower, depending in the
conditions.
The air inlets or outlets of the indoor or outdoor
unit may be obstructed.
Clear away any objects or furniture that could be blocking the
air inlet or outlet of either units.
There may be heat sources present when at-
tempting to cool the room.
Turn off or remove any heat sources that could be counteract-
ing the cooling efficiency of the unit.
Doors or windows may have been left open in
the room.
Close doors and windows to prevent cooled or heated air from
escaping the room.
The airflow deflectors
do not appear to close
normally.
The airflow deflectors may have been adjusted
manually.
Disconnect the power for 3 seconds, then reconnect power and
restart the unit. If the problem persists, disconnect the power,
reinstall the airflow deflectors (first install the upper deflector,
then the lower deflector), then reconnect power.
WARNING :
▪ When any of the following conditions occur, turn off the heat pump and disconnect the power supply
immediately, then contact your local dealer or service center for repairs.
1. The power cord is overheated or damaged.
2. There is abnormal sounds during operation.
3. The circuit breaker trips frequently.
4. The air conditioner gives off a burning smell.
5. The indoor unit is leaking.
▪ Do not repair the heat pump yourself. You may expose yourself to electric shock or damage the
equipment.
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