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MAINTENANCE
1 TROUBLESHOOTING
1�1 CAUTION
Don’t attempt to repair the air conditioner by yourself. It can cause an electric shock or re. Please check the
following items before asking for repair, it can save your time and money.
Phenomenon Troubleshooting
Not operate immediately when
the air conditioner is restarted.
Once the air conditioner is stopped, it will not operate in approximately 3minutes to protect itself
There's unusual smell blowing from
the outlet after operation is started.
The unit has no peculiar smell by itself. If has, that is due to the smell accumulated in the
ambient.
Solution method: Cleaning the lter. If problem still has, so need to clean air conditioner. (Please
contact with the authorized maintenance center.)
Sound of water ow can be
heard during the operation.
The sound is due to water owing they are not malfunctions.
In COOL mode, sometimes the mist
emitted from the air outlet vent.
When the indoor temperature and humidity are very high, this phenomenon would happen. This
is caused by the room air is swiftly cooled down. After running for a while, indoor temperature
and humidity will fall down, the mist will die away.
Creaking noise can be heard
when start or stop the unit.
This is caused by the deformation of plastic due to the changes of temperature.
The unit can not run.
Has the power been shut down?
Is power plug loosed?
Is the circuit protection device tripped off or not?
Is voltage higher or lower?
(Tested by professionals)
Is the TIMER correctly used?
Cooling(Heating) efciency
is not good.
Is Temp setting suitable?
Were inlet and outlet vents obstructed?
Is lter dirty?
Are the windows and doors clothed?
Did Fan speed set at low speed?
Is there any heat sources in the room?
Wireless remote control
is not available.
The unit is interfered by abnormal or frequent functions switchover occasionally the controller
cannot operate. At this time, you need to pull out of the plug, and reinsert it.
Is it in its receiving range? Or obstructed? To check the voltage in wireless remote control inside
is charged, otherwise to replace the batteries.
Whether the wireless remote control is damaged.
If water leakage in the room.
The air humidity is on the high side.
Condensing water over owed.
The connection position of indoor unit drainage pipe is loosed.
Indoor unit cannot deliver air.
In HEAT mode, when the temperature of indoor heat exchanger is very low, that will stop deliver
air in order to prevent cool air. (Within 2min)
In COOL mode, when the temperature of indoor heat exchanger is very high, that will stop deliver
air in order to prevent heat air. (Within 2min)
Moisture on air outlet vent.
If unit is running under the high humidity for a long time, the moisture will be condensed on the
air outlet grill and drip off.
Cooling LED blinks, display F0.
F0:Ambient temperature sensor is open or short-circuit.
Please cut off power at rst and then check whether the wires of ambient temperature sensor
have been disconnected with the main board. If there are disconnected, please insert the ambient
temperature sensor and then check whether it can run normally after power on. If it still can’t run
normally; please replace the ambient temperature sensor.
Cooling LED blinks, display F1.
F1: Aluminum n-copper tube temperature sensor is open or short-circuit.
Please cut off power at rst and then check whether the wires of tube temperature sensor have
been disconnected with the main board.
If there are disconnected, please insert the tube temperature sensor and then check whether it
can run normally after power on. If it still can’t run normally, please replace the tube temperature
sensor.
Running LED blinks, displays C5.
C5: Malfunction protection of the jumper cap.
Please cut off power at rst and then check whether the cap jumper has been inserted well.
Running LED blinks, displays H6.
H6: No motor feed back.
Please cut off power at rst and then restart the unit to check whether it can run normally or not.
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