HTW ADMIRA FST3-140ADM Manuel De L'utilisateur Et D'installation page 56

Troubleshooting
SAFETY PRECAUTIONS
If any of the following conditions occurs, turn off your unit immediately!
The power cord is damaged or abnormally warm
•
You smell a burning odor
•
The unit emits loud or abnormal sounds
•
A power fuse blows or the circuit breaker frequently trips
•
Water or other objects fall into or out of the unit
•
DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AN AUTHORIZED
SERVICE PROVIDER IMMEDIATELY!
Common Issues
The following problems are not a malfunction and in most situations will not require repairs.
Issue
Unit does not
turn on when
pressing ON/
OFF button
The unit changes
from COOL mode
to FAN mode
The indoor unit
emits white mist
Both the indoor
and outdoor units
emit white mist
The indoor unit
makes noises
Both the indoor
unit and outdoor
unit make noises
Possible Causes
The unit has a 3-minute protection feature that prevents the unit from overloading.
The unit cannot be restarted within three minutes of being turned off.
The unit changes its setting to prevent frost from forming on the unit. Once the
temperature increases, the unit will start operating again.
The set temperature has been reached, at which point the unit turns off the compressor.
The unit will resume operating when the temperature fluctuates again.
In humid regions, a large temperature difference between the room's air and the
conditioned air can cause white mist.
When the unit restarts in HEAT mode after defrosting, white mist may be emitted due
to moisture generated from the defrosting process.
A squeaking sound is heard when the system is OFF or in COOL mode. The noise is also
heard when the drain pump (optional) is in operation.
A squeaking sound may occur after running the unit in HEAT mode due to expansion
and contraction of the unit's plastic parts.
A low hissing sound may occur during operation. This is normal and is caused by
refrigerant gas flowing through both the indoor and outdoor units.
A low hissing sound may be heard when the system starts, has just stopped running or
is defrosting. This noise is normal and is caused by the refrigerant
gas stopping or changing direction.
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