7
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
Air conditioner
can’t operate
Power failure?
Wait until power recovery.
Is plug loose?
Reinsert the plug.
Circuit break trips off or fuse is
burnt out?
Ask professional to replace circuit
break or fuse.
Wiring has malfunction?
Ask professional to replace it
Unit has restarted immediately
after stopping operation?
Wait for 3min, and then turn on the
unit again.
Whether the function setting for
remote controller is correct?
Reset the function.
Set temperature
can’t be adjusted
Unit is operating under auto
mode?
Temperature can’t be adjusted under
auto mode.
Please switch the operation mode if
you need to adjust temperature.
Your required temperature exceeds
the set temperature range?
Set temperature range:
16°C~31°C
Cooling (heating)
effect is not good.
Voltage is too low?
Wait until the voltage resumes normal.
Filter is dirty?
Clean the filter.
Set temperature is in proper range?
Adjust temperature to proper range.
Door and window are open?
Close door and window.
Air conditioner
operates normally
suddenly
Whether there’s interference,such
as thunder, wireless devices, etc.
Disconnect power, put back power,
and then turn on the unit again.
Outdoor unit has
vapor
Heating mode is turned on?
During defrosting under heating
mode, it may generate vapor, which
is a normal phenomenon.
“ Water flowing”
noise
Air conditioner is turned on or
turned off just now?
The noise is the sound of refrigerant
flowing inside 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.
Malfunction analysis
