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GB
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
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.
• Under heating mode,
indoor temperature is
reached to set temp-
erature?
• 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.
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