Troubleshooting; Common Problems - INVENTOR U5MRSL32-18 Benutzerhandbuch

Troubleshooting

CAUTIONS
If one of the following conditions occurs, switch off the power supply immediately and contact
your dealer for further assistance.
• The operation light continues to flash rapidly after the unit has been restarted.
• The remote control buttons do not work.
• The unit continually trips fuses or circuit breakers.
• A foreign object or water enters the air conditioner.
• Other abnormal situations.

Common Problems

The following symptoms are not a malfunction and in most situations will not require repairs.
Problem
The unit has a 3-minute protection feature that prevents the unit from over-
loading. The unit cannot be restarted within three minutes of being turned off.
Unit does not
Cooling and Heating Models: If the Operation light and PRE-DEF (Pre-heating/
turn on when
Defrost) indicators are lit up, the outdoor temperature is too cold and the unit's
pressing ON/
anti-cold wind is activated in order to defrost the unit.
OFF button
In Cooling-only Models: If the "Fan Only" indicator is lit up, the outdoor tem-
perature is too cold and the unit's anti-freeze protection is activated in order to
defrost the unit.
The unit changes its setting to prevent frost from forming on the unit. Once the
The unit temperature increases, the unit will start operating again.
changes from
The set temperature has been reached, at which point the unit turns off the
COOL mode to
compressor. The unit will resume operating when the temperature fluctuates
FAN mode
again.
The indoor
In humid regions, a large temperature difference between the room's air and
unit emits
the conditioned air can cause white mist.
white mist
Both the
indoor and
When the unit restarts in HEAT mode after defrosting, white mist may be emit-
outdoor units
ted due to moisture generated from the defrosting process.
emit white
mist
Possible Causes
4
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