Troubleshooting - Kaisai KCD-24 Bedienungsanleitung

Troubleshooting

SAFETY PRECAUTIONS
If any of the following conditions occurs, turn o 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 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 o .
Unit does not turn
Cooling and Heating Models: If the Operation light and PRE-DEF (Pre-heating/
on when pressing
Defrost) indicators are lit up, the outdoor temperature is too cold and the unit's
ON/OFF button
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 may change its setting to prevent frost from forming on the unit.
Once the temperature increases, the unit will start operating in the
The unit changes from
previously selected mode again.
COOL/HEAT mode to
The set temperature has been reached, at which point the unit turns o the
FAN mode
compressor. The unit will continue operating when the temperature
fluctuates again.
The indoor unit In humid regions, a large temperature di erence between the room's air
emits white mist and the conditioned air can cause white mist.
Both the indoor and
When the unit restarts in HEAT mode after defrosting, white mist may be
outdoor units emit
emitted due to moisture generated from the defrosting process.
white mist
A rushing air sound may occur when the louver resets its position.
A squeaking sound is heard when the system is OFF or in COOL mode. The
The indoor unit makes
noise is also heard when the drain pump (optional) is in operation.
noises
A squeaking sound may occur after running the unit in HEAT mode due to
expansion and contraction of the unit' s plastic parts.
Low hissing sound during operation: This is normal and is caused by refrigerant
gas flowing through both indoor and outdoor units.
Low hissing sound when the system starts, has just stopped running, or is
Both the indoor unit
defrosting: This noise is normal and is caused by the refrigerant gas stopping or
and outdoor unit make
changing direction.
noises
Squeaking sound: Normal expansion and contraction of plastic and metal parts
caused by temperature changes during operation can cause squeaking noises.
48
Issue Possible Causes
The outdoor unit
The unit will make di erent sounds based on its current operating mode.
makes noises
Dust is emitted from The unit may accumulate dust during extended periods of non-use, which will be
either the indoor or emitted when the unit is turned on. This can be mitigated by covering the unit during
outdoor unit
long periods of inactivity.
The unit may absorb odors from the environment (such as furniture, cooking,
The unit emits a
cigarettes, etc.) which will be emitted during operations.
bad odor
The unit' s filters have become moldy and should be cleaned.
The fan of the outdoor
During operation, the fan speed is controlled to optimize product operation.
unit does not operate
NOTE: If problem persists, contact a local dealer or your nearest customer service center. Provide
them with a detailed description of the unit malfunction as well as your model number.
Troubleshooting
When troubles occur, please check the following points before contacting a repair company.
Problem Possible Causes
Temperature setting may be higher
than ambient room temperature
The heat exchanger on the indoor
or outdoor unit is dirty
The air lter is dirty
Poor Cooling The air inlet or outlet of either
Performance unit is blocked
Doors and windows are open
Excessive heat is generated
by sunlight
Too many sources of heat in the
room (people, computers,
electronics, etc.)
Low refrigerant due to leak
or long-term use
Solution
Lower the temperature setting
Clean the a ected heat exchanger
Remove the filter and clean it according to
instructions
Turn the unit o , remove the obstruction
and turn it back on
Make sure that all doors and windows are
closed while operating the unit
Close windows and curtains during periods
of high heat or bright sunshine
Reduce amount of heat sources
Check for leaks, re-seal if necessary and
top o refrigerant
49