haier AE122BCAAA (H2EM-18H03) - Manual (Page 14)

13
If after the above checking and treatment, the air conditioner still cannot work normally, or
find the following phenomena, please stop the unit and contact the commissioned service
center.
The fuse or breaker is often blown out or open circuit.
In COOLING or DEHUMIDIFYING, there is water leakage.
Abnormal operation or abnormal sound be heard.
The display screen of the wire controller shows trouble code indicating the unit has
trouble.
F1
F2
Trouble Contents
Indoor temperature sensor trouble
F5 High pressure trouble (pressure)
F6 Drainage trouble
F4
Code Displayed
Inner pipe coil sensor trouble (thin pipe)
Troubleshooting
Before as the special repair center for help, please check the following items of the air
conditioner
Symptom Cause
Hear the sound of
water flow
The water flow sound when operation starts; during operation and shortly
after operation stops, in 2-3 minutes shortly after the operation starts,
sometimes the sound becomes louder. This is the sound of refrigerant flow
and the draining sound of condensate water.
Not trouble
In DEHUMIDIFYING,
no air sent out or cannot
change the fan speed.
In DEHUMIDIFYING operation, when the room temperature is 2 C higher
than the set temperature, despite of the set FAN SPEED the air conditioner
will operate in LOW FAN SPEED.
Having peculiar smell
in the out air
Because the smells generated by wall, carpet, furniture,clothes, cigarette
and cosmetic, etc. attached on the air conditioner.
The stopped indoor unit
gives out sound, white
vapor or cold air.
In order to prevent the oil and refrigerant from resorting in the indoor
unit, there is refrigerant flow in very short time, so they give out ìSha,
Shaî, ìGulu, Guluî. Additionally, when the other indoor units perform
HEATING operation, sometimes white vapor appears; when the other
indoor units perform COOLING operation, cold air appears.
If there is the following symptom and check they are the following causes,
please solve them according to the below given methods.
Inner pipe coil sensor trouble (thick pipe)
Symptom Causes Solution
The unit does
not work
The fuse is blown out or the
breaker is open-circuit.
Change fuse or close breaker
Once the unit starts,
it stops immediately
The air inlet or outlet of indoor and
outdoor unit is blocked
Remove the obstacle
Remove the obstacle The air inlet or outlet of indoor
and outdoor unit is blocked
Improper set temperature
The fan speed is set too low
Doors or windows are open
Direct sunshine. (COOLING)
Too much people in room (COOLING)
Too many heat sources in room (COOLING)
Refer to page 7
Refer to page 7
Close them
Hang curtains or blinds before window
Abnormal
COOLING or
HEATING