9
Malfunction analysis
General phenomenon analysis
Please check below items before asking for maintenance. If the malfunction still can't be
eliminated,please contact local dealer or professional person.
Phenomenon
Check items
Solution
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 controller 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 and no display?
Check the batteries. If the power of
batteries is too low,please replace
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.
Turn off the fluoresent lamp and then
try it again.
No air emitted
from indoor unit.
Air inlet or air outlet of indoor unit
is blocked?
Eliminate obstacles.
In heating mode, indoor
temperature reached to seting
temperature?
After reaching to seting 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.
Is circuit broken off or fuse burnt
out?
Ask professional person to replace
circuit break or fuse.
Wiring has malfunction?
Ask professional person to replace it.
Has unit restarted immediately
after stopping operation?
Wait for 3min, and then turn on the
unit again.
Whether the function setting for
remote controller correct?
Reset the function.