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 qualied professionals.
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)?
● Whether remote controller is 
   within the signal receiving
   range?
● Whether there are obstacles?
● Whether remote controller is
   pointing at the receiving
   window?
● Is sensitivity of remote contro-
   ller low; fuzzy display and no
   display?
● No display when operating
   remote controller?
● Fluorescent lamp in room?
● Pull out the plug. Reinsert 
   the plug after about 3min, and
   then turn on the unit again.
● Signal receiving range is 8m.
● Remove obstacles.
● 
Select proper angle and point 
   the remote controller at the re-
   ceiving window on indoor unit.
● Check the batteries. If the
   power of batteries is too low, 
   please replace them.
● Take the remote controller 
   close to indoor unit.
● Turn off the uoresent lamp 
   and then try it again.
● Check whether remote cont-
   roller appears to be damaged. 
   If yes, replace it.
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 temper-
   ature, indoor unit will stop bl-
   owing 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 sev-
   eral minutes, which is a nor-
   mal phenomenon.