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19
TROUBLE
SHOOTING (Cont.)
TROUBLE
REASON
ACTION
Air flow cannot circulate freely
Remove obstructions.
Dirty filters reduce air quantity circulating. Clean air filters
Doors and/or windows are open.
Close doors and windows
Fan speed has been set to “Low”
Set fan speed at high speed.
Air flow direction is not correct
Adjust airflow direction as per
the mode chosen.
Air conditioner is not
supplying enough cooling.
Selected temperature is higher than the
room temperature in the cooling mode.
Correct selected temperature.
Air flow cannot circulate freely
Remove obstructions.
Dirty filters reduce air quantity circulating. Clean air filters
Doors and/or windows are open.
Close doors and windows
Fan speed has been set to “Low”
Set fan speed at high speed.
Air flow direction is not correct
Adjust airflow direction as per
the mode chosen.
Air conditioner is not
supplying enough heating.
Selected temperature is Lower than the
room temperature in the heating mode.
Correct selected temperature.
Green LED is flashing
System malfunction. Contact service center
after having made the following checks:
•
Air filters are clean.
•
Air circulation is not obstructed.
•
Outdoor unit coil is not obstructed with
a severe reduction of air circulation.
Refer to the installation manual
for fault code reading to be
notified to service center.
Restart air conditioner after
having corrected the faults.
A slight mist is emitted from
the indoor unit during
cooling
The cool air from the indoor unit is coming
into contact with the room air.
Normal operation
A slight whistling noise is
heard when the air
conditioner starts or stops.
This is due to the refrigerant beginning to
circulate or an adjustment of the refrigerant
pressures.
Normal operation
Water vapor (mist) emanating
from the outdoor unit.
It is normal in heat pump operation, when
defrost is automatically activated.
Normal operation
Unpleasant smells coming
from the indoor unit.
Unpleasant smells can be caused by
substances accumulated in the air filters
Switch the system OFF and
contact an authorized service
center to have the filters
cleaned.
Restart unit in the ventilation
(fan only) mode and open
windows to change room air.
Strange noises coming from
the indoor unit.
Occasionally the indoor unit can emit some
strange short noises during operation or
when it has stopped.
These are generally due to the of
temperature changes on the plastic parts.
Normal operation
Starting in heating mode for
heat pump systems
If the system starts at low ambient
temperatures, it takes a little while to reach
a comfortable room temperature.
When the system is started by the remote
control, it emits a signal beep, but the
louvre does not swing and the fan does not
run until the operating temperature has
been reached.
Normal operation
Summary of Contents for 38QG15-H
Page 8: ...6 8 WIRING DIAGRAMS...
Page 9: ...7 WIRING DIAGRAMS Cont...
Page 11: ...9 11 REFRIGERATION CYCLE 53VMC SERIES HEAT PUMP SYSTEM...
Page 12: ...10 REFRIGERATION CYCLE 53VMC SERIES Cont COOL ONLY SYSTEM...
Page 29: ...6 8 WIRING DIAGRAMS...
Page 30: ...7 WIRING DIAGRAMS Cont...
Page 32: ...9 10 REFRIGERATION CYCLE 53VMC SERIES HEAT PUMP SYSTEM...
Page 33: ...10 REFRIGERATION CYCLE 53VMC SERIES Cont COOL ONLY SYSTEM...