4
Owner's manual
Check it again
Will not run
Whether the power is cut.
Whether the manual power switch is turned on.
Whether the fuse has melted.
Whether the protection device works (operation
light is on)
Whether it is the time set.
Insufficient cooling
Insufficient heating
Whether the inlet and outlet of outdoor unit is
blocked.
Whether the door and window are open.
Whether the air filter is blocked by dust.
Whether the air deflector is in the right place
Whether the fan speed is slight or whether it
is in FAN mode.
Whether the temperature is set properly.
Setting COOL and HEAT simultaneously
(indicator light for Standby or No Priority on
the panel is on)
Please view the following illustrations (before servicing)
Troubles Causes
Not a malfunction
Mist or water
The unit hisses
Outdoor unit
Bad odor
Operation light flashes
No priority or Standby on the panel
lights up
Indoor unit
FAN function stop automatically to defrost is
accompanied by the starting and stopping
sound of the solenoid valve.
At the beginning and end of the running
process, it sounds like water is flowing in the
valve for 3-15 minutes due to the dehumidifying
process of the refrigerant current.
A slight hiss is caused by heat exchanger as
temperature changes.
Various foreign matter gets into the unit.
Switch on the power after a power cut.
The preheating processes of other equipment
stops the cooling operation.
The user sets a mode that conflicts with the
fixed cooling and heating mode.
FAN mode stops to avoid expelling cold air.
Starts or stops operation automatically
Mis-operation of the timer.
Table.4-1
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