19
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 qualified professionals.
Phenomenon
Check items
Solution
• 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 con
-
troller 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 control
-
ler 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.
Indoor unit can’t
receive remote
controller’s
signal or remote
controller has no
action.
Indoor unit can’t
receive remote
controller’s
signal or remote
controller has
no action.
• 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 tempera
-
ture, 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 phe-
nomenon.