EAS Electric EFSP-DC25W Manual page 34

Symptom 3: White mist comes out of a unit
Symptom 3.1: 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
person.
Symptom 3.2: Indoor unit, outdoor unit
When the system is changed over to heating operation after
defrost operation Moisture generated by defrost becomes
steam and is exhausted.
Symptom 4: Noise of air conditionerscooling
Symptom 4.1: Indoor unit
A continuous low "shah" 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 "pishi-pishi" 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 4.2: 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
When the unit is used for the first time in a long time.
This is because dust has gotten into the unit.
Symptom 6: The units can give off odours
The unit can absorb the smell of rooms, furniture, cigarettes,
etc., and then emit it again.
Table 8-1
Symptoms
Unit does not start
Air flowing normally but
completely can't cooling
Low cooling effect
Low heating effect
Symptom 7: The outdoor unit fan does not spin.
Table 7-1
Malfunction code
8. TROUBLESHOOTING
8.1.
If one of the following malfunctions occur, stop operation, shut
off the power, and contact with your dealer.
8.2.
Before asking for serving or repairing , check the following
points.
(Refer to Table 8-2)
Causes
Power failure.
Power switch is off.
Fuse of power switch may have burned.
Batteries of remote controller exhausted
or other problem of controller.
Temperature is not set correctly.
Indoor unit heat exchanger is dirty.
The air filter is dirty.
Inlet of indoor units is blocked.
Doors and windows are open
Sunlight directly shine.
Too much heat resource.
Outdoor temp. is too high.
Outdoor temperature is lower than 7 C .
Doors and windows not completely
closed.
V.1
During operation. The speed of the fan is controlled in order to
optimize product operation.
Malfunction
EE
Water-level alarm malfunction
E3
T2 evaporator sensor malfunction
E2 T1 evaporator sensor malfunction
DC motor malfunction
E8
EEPROM communication error
E7
Troubles and causes of air conditioner
The operation lamp is flashing rapidly (twice every second)
This lamp is still flashing rapidly after turn off the power and turn
on again.
Remote controller receives malfunction or the button does not
work well.
A safety device such as a fuse, a breaker frequently actuates.
Water leaks from indoor unit.
Other malfunctions.
Troubles and causes of remote controller
Solution
Wait for the comeback of power.
Switch on the power.
Replace the fuse.
Replace the batteries or check the
controller.
Set the temperature properly.
Clean the heat exchanger.
Clean the air filter.
Eliminate all dirties and make air
smooth.
Close doors and windows.
Make curtains in order to shelter from
sunshine.
Reduce heat source.
AC cooling capacity reduces (normal).
Use heating device.
Close doors and windows.
owner's manual
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