Troubleshooting Tips - Kaisai KCA3U-12 Bedienungsanleitung

Problem
Dust is emitted from The unit may accumulate dust during extended periods of non-use, which
either the indoor or will be emitted when the unit is turned on. This can be mitigated by covering
outdoor unit the unit during 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 unit
During operation, the fan speed is controlled to optimize product operation.
does not operate

Troubleshooting Tips

When troubles occur, please check the following points before contacting a repair company.
Problem Possible Causes
Power failure
The power switch is o
The unit
The fuse is burned out
is not
Remote control batteries are dead
working
The unit' s 3-minute protection has
been activated
Temperature setting may be higher
than the ambient room temperature
The heat exchanger on the indoor
or outdoor unit is dirty
The air filter is dirty
Poor cooling
The air inlet or outlet of either unit
performance
is blocked
Doors and windows are open
Excessive heat is generated by
sunlight
Low refrigerant due to leak or
long-term use
There' s too much or too little
refrigerant in the system
There is air, incompressible gas or
The unit
foreign material in the refrigeration
starts and
system.
stops
frequently System circuit is blocked
The compressor is broken
The voltage is too high or too low
The outdoor temperature is lower
than 7°C (44.5°F)
Poor heating
Cold air is entering through doors
performance and windows
Low refrigerant due to leak or
long-term use
Possible Causes
Solution
Wait for the power to be restored
Turn on the power
Replace the fuse
Replace the remote control batteries
Wait three minutes after restarting the unit
Lower the temperature setting
Clean the a
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
Check for leaks, re-seal if necessary and
top o refrigerant
Check for leaks and recharge the system
with refrigerant
Evacuate and recharge the system with
refrigerant
Determine which circuit is blocked and replace
the malfunctioning piece of equipment
Replace the compressor
Install a manostat to regulate the voltage
Check for leaks and recharge the system
with refrigerant
Make sure that all doors and windows are
closed during use
Check for leaks, re-seal if necessary and
top o refrigerant
42
Error Codes
Number Cause
Indoor EEPROM (Electrically Erasable
1
Programmable Read-Only Memory) error
2 Indoor and outdoor unit communication malfunction
3 Indoor fan speed malfunction
4 Indoor room temperature sensor error
5 Evaporator coil temperature sensor error
6 Refrigerant leak detection system malfunction
7 Water level alarm malfunction
Dual indoor unit (twin model only)
8
communication malfunction
9 Other twin model malfunction
10 Overload protection
11 Outdoor temperature sensor error
12 Outdoor condenser pipe sensor error
13 Discharge air temperature sensor error
Outdoor EEPROM (Electrically Erasable
14
Programmable Read-Only Memory) error
15 Outdoor fan speed (DC fan motor only) malfunction
16 T2b sensor error
17 Inverter module IPM protection
18 High/Low voltage protection
19 Compressor top overheating protection
20 Outdoor low temperature protection
Compressor drive error
21
22 Mode conflict
23 Compressor low-pressure protection
24 Outdoor IGBT sensor error
The number
Timer Error
of flashes
indicator Code
per second
1 O
2 O
4 O
5 O
6 O
7 O
8 O
9 O
10 O
1 On
2 On
3 On
4 On
5 On
6 On
7 On
1 Flash
2 Flash
3 Flash
4 Flash
5 Flash
6 Flash
7 Flash
8 Flash
43
E0
E 1
E3
E4
E5
EC
EE
E8
E9
F0
F 1
F2
F3
F4
F5
F6
P0
P 1
P2
P3
P4
P5
P6
P7