Climate 5000 SCI – 6720887397 (2018/04)
7
Troubleshooting
5
Troubleshooting
CAUTION
If one of the following conditions occurs, isolate 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.
•
The indoor unit leaks.
•
Other abnormal situations.
5.1
Common Problems
The following symptoms are not a malfunction and in most situations will
not require repairs.
Problem
Possible Causes
Unit does not turn
on when the ON/
OFF button is
pressed
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.
Cooling and heating models: If the operation
light and PRE-DEF (pre-heating/defrost)
indicators are lit up, the outdoor tempera-
ture is too cold and the unit’s anti-cold wind
is activated in order to defrost the unit.
In cooling-only models: If the “fan only”
indicator is lit up, the outdoor temperature is
too cold and the unit’s anti-freeze protection
is activated in order to defrost the unit.
The unit changes
from COOL mode
to FAN mode
The unit changes its setting to prevent frost
from forming on the unit. Once the tempera-
ture increases, the unit will start operating
again.
The set temperature has been reached, at
which point the unit turns off the compres-
sor. The unit will resume operation when the
temperature fluctuates again.
The indoor unit
emits white mist
In humid regions, a large temperature
difference between the room air and the
conditioned air can cause white mist.
Both the indoor
and outdoor units
emit white mist
When the unit restarts in HEAT mode after
defrosting, white mist may be emitted due
to moisture generated from the defrosting
process.
The indoor unit
makes noises
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 the unit
is run in HEAT mode due to expansion and
contraction of the unit’s plastic parts.
Problem
Possible Causes
Both the indoor
unit and outdoor
unit make noises
A low hissing sound may occur during
operation. This is normal and is caused by re-
frigerant 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.
The outdoor unit
makes noises
The unit will make different sounds based on
its current operating mode.
Dust is emitted
from either the
indoor or the
outdoor unit
The unit may accumulate dust during
extended periods of non-use, which will be
emitted when the unit is turned on. This can
be mitigated by covering the unit during long
periods of inactivity.
The unit emits a
bad odour
The unit may absorb odour from the environ-
ment (such as furniture, cooking, cigarettes,
etc.) which will be emitted during operation.
The unit’s filters have become moldy and
should be cleaned.
The fan of the
outdoor unit does
not operate
During operation, the fan speed is controlled
to optimise product operation.
Table 2.
5.2
Troubleshooting Tips
When problems occur, please check the following points before
contacting a repair company.
Problem
Possible Causes
Solution
The unit is
not working
Power failure
Wait for the power to
be restored
The power switch is off
Turn on the power
The fuse is blown
Replace the fuse
Remote control batter-
ies are dead
Replace the remote
control batteries
The unit’s 3-minute
protection has been
activated
Wait three minutes
after restarting the unit
