6. FOLLOWING SYMPTOMS ARE NOT AIR
CONDITIONER TROUBLES
Symptom 1: The system does not operate
Symptom 2: Change into the fan mode during
cooling mode
Symptom 3: White mist comes out of a unit
Symptom 4: Noise of air conditionerscooling
The air conditioner does not start immediately after the ON/OFF
button on the romote controller is pressed.
If the operation lamp lights, the system is in normal condition.To
prevent overloading of the compressor motor, the air
conditioner starts 3 minutes after it is turned ON.
If the operation lamp and the "PRE-DEF indicator(cooling and
heating type) or fan only indicator(cooling only type)" light, it
means you choose the heating model, When just starting, if the
compressor has not started, the indoor unit appears "anti cold
wind" protection because of too low outlet temperature.
In order to prevent the indoor evaporator frosting, the system
will change into fan mode automatically, restore to the cooling
mode will be done automatically after.
Symptom 3.1: Indoor unit
Symptom 3.2: Indoor unit, outdoor unit
Symptom 4.1: Indoor unit
When humidity is high during cooling operation If the interior of
an indoor unit is extremely contaminated, the temperature
distribution inside a room becomes uneven. It is necessary to
clean the interior of the indoor unit. Ask your dealer for details
on cleaning the unit. This operation requires a qualified service
erson
When the system is changed over to heating operation after
defrost operation Moisture generated by defrost becomes
steam and is exhausted.
Symptom 4.2: Indoor unit, outdoor unit
A continuous low hissing sound is heard when the system is in
operation.
This is the sound of refrigerant gas flowing through both indoor
and outdoor units.
A hissing sound which is heard at the start or immediately after
stopping operation or defrost operation.
This is the noise of refrigerant caused by flow stop or flow
change.
.
A continuous low hissing sound is heard when the system is in
cooling operation or at a stop.
When the drain pump (optional accessories) is in operation,this
noise is heard.
A squeaking sound is heard when the system stops after heating
operation.
Expansion and contraction of plastic parts caused by
temperature change make this noise.
Symptom 4.3: Outdoor unit
When the tone of operating noise changes.
This noise is caused by the change of frequency.
Symptom 5: Dust comes out of the unit
Symptom 6: The units can give off odours
When the unit is used for the first time in a long time.
This is because dust has got into the unit.
The unit can absorb the smell of rooms, furniture, cigarettes,
etc., and then emit it again.
Symptom 7: The outdoor unit fan does not
spin.
During operation. The speed of the fan is controlled in order to
optimize unit operation.
When the room temperature drops to the set temperature, the
compressor turns off and the indoor unit changes to fan mode;
when the temperature rises up, the compressor starts again. It
is same in the heating mode.
owner’s manual
13
Maintenance after a long stop period
(eg. at the beginning of the season)
Check and remove everything that might be blocking inlet
and outlet vents of indoor units and outdoor units.
Clean air filters and casings of indoor units.
Refer to "Cleaning the air filter" for details on how to
proceed and make sure to install cleaned air filters back in
the same position.
Turn on the power at least 12 hours before operating the
unit in order to ensure smoother operation. As soon as he
power is turned on, the remote controller displays appear.
Digital scroll central air conditioning
auxiliary heating equipment
In winter, due to the difference of the area and building
construction, please purchase the indoor unit with auxillary
heating to enlarge the capacity.
When turning to the heat mode the air conditioner with
auxiliary heating will run at the set term.
It’s not advised to auxiliary heating equipments on site for
4-way cassttte type and duct/celling type(with auxiliary
heating).