Troubleshooting - Delta 9000 BTU User Manual

TROUBLESHOOTING

MALFUNCTION
The appliance does
not operate
Strange odor
Noise of running water
A fine mist comes from
the air outlet
A strange noise can be
heard
Insufficient airflow,
eitherhot or cold
The appliance does not
respond to commands
The display is off
Switch off the air
conditioner immediately
and cut off the power
supply in the event of:
POSSIBLE CAUSES
Power failure/plug pulled out.
Damaged indoor/outdoor unit fan motor.
Faulty compressor thermomagnetic circuit breaker.
Faulty protective device or fuses.
Loose connections or plug pulled out.
It sometimes stops operating to protect the appliance.
Voltage higher or lower than the voltage range.
Active TIMER-ON function.
Damaged electronic control board.
Dirty air filter.
Back flow of liquid in the refrigerant circulation.
This occurs when the air in the room becomes very cold, for example
in the COOLING or
This noise is made by the expansion or contraction of the front panel
due to variations in temperature and does not indicate a problem.
Unsuitable temperature setting.
Obstructed air conditioner intakes and outlets.
Dirty air filter.
Fan speed set at minimum.
Other sources of heat in the room.
No refrigerant.
Remote control is not close enough to indoor unit.
The batteries of remote control need to be replaced.
Obstacles between remote control and signal receiver in indoor unit.
Active DISPLAY function.
Power failure.
Strange noises during operation.
Faulty electronic control board.
Faulty fuses or switches.
Spraying water or objects inside the appliance.
Overheated cables or plugs.
Very strong smells coming from the appliance.
26
DEHUMIDIFYING/DRY modes.