
17
OWNER’S MANUAL
CHECKED ITEMS BEFORE MAINTENANCE
Indoor unit can’t
receive remote
controller’s signal or
remote controller has
no action.
Whether it’s interfered severely
(such as static electricity, stable
voltage?)
Pull out the plug. Reinsert the plug after about
3min, and then turn on the unit again.
Whether remote co ntroller is
within the signal receiving range? Signal receiving range is 8m.
Whether there are obstacles? Remove obstacles.
Whether remote controller
is pointing at the receiving
window?
Select proper angle and point the remote
controller at the receiving window on indoor unit.
Is sensitivity of remote controller
low; fuzzy display or no display?
Check the batteries.
If the power of batteries is too low, please rep- lace
them.
No display when operating
remote controller?
Check whether remote controller appears to be
damaged. If yes, replace it.
Fluorescent lamp in room? Take the remote controller close to indoor unit.
No air emitted from
indoor unit
Air inlet or air outlet of indoor
unit is blocked? Eliminate obstacles.
Under heating mode, indoor
temperature is reached to set
temperature?
After reaching to set temperature, indoor unit will
stop blowing out air.
Heating mode is turned on just
now?
In order to prevent blowing out cold air, indoor
unit will be started after delaying for several
minutes, which is a normal phenomenon.
Air conditioner can’t
operate
Power failure? Wait until power recovery.
Is plug loose? Reinsert the plug.
Air switch trips off or fuse is burnt
out? Ask professional to replace air switch or fuse.
Wiring has malfunction? Ask professional to replace it.
Unit has restarted immediately
after stopping operation?
Whether the function setting for
remote controller is correct? Reset the function.
Mist is emitted from
indoor unit’s air
outlet
Indoor temperature and humidity
is high?
Because indoor air is cooled rapidly. After a while,
indoor temperature and humidity will be decrease
and mist will disappear.
Odours are emitted Whether there’s odour source,
such as furniture and cigarette, etc.
Set temperature
can’t be adjusted
Your required temperature
exceeds the set temperature
range?
Cooling (heating)
effect is not good.
Voltage is too low? Wait until the voltage resumes normal.
Filter is dirty?
Set temperature is in proper
range? Adjust temperature to proper range.
Door and window are open? Close door and window.
Air conditioner
operates abnormally
Whether there’s interference,
such as thunder, wireless devices,
etc.
Disconnect power, put back power, and then turn
on the unit again.
noise
Air conditioner is turned on or
turned off just now?
the unit, which is a normal phenomenon.
Cracking noise Air conditioner is turned on or
turned off just now?
This is the sound of friction caused by expansion
and or contraction of panel or other parts due to
the change of temperature.
Air guide louver can’t
be closed normally
Whether the air guide louver has
been adjusted?
Disconnect the power for 3s and then connect the
power; if the problem still exits, disconnect the
power, reinstall the air guide louver (install the
upper air guide louver and then install the lower air
guide louver) and then connect the power.