2. Error messages on the control panel
A red flashing error LED indicates an error has occurred on the stationary air conditioner. The type of error is
indicated on the display by the following error codes.
2
7.5 | 6/14
Message Description
Cause
Remedy
Further measures
F01
The compressor doesn’t
work.
Compressor overloaded or
error on the compressor
supply line/cabling.
➢
Switch the system off
➢
Switch it on again after
60 minutes
➢
Check the ambient
temperature (should not
be below 0°C or higher
than 43°C)
1. Check the electrical connection of the
compressor
➢
Connectors in the condenser
➢
Electrical connections of compressor &
Klickson
➢
Connectors on the PCB
F02
The system cannot
measure the current
room temperature
Room temperature sensor is
not connected or defective,
or the measured value is
beyond the specifications.
➢
Switch the system off
➢
Switch it on again after
60 minutes
➢
Check the ambient
temperature (should not
be below 0°C or higher
than 43°C)
1. Check if the temperature sensor is connected
to the control unit.
2. Replace the temperature sensor.
3. Replace the control unit.
F03
System is overloaded
(excessive pressure in
the system), the
compressor shuts off.
Thermal overload caused
by excessive ambient
temperature or defective fan.
➢
Switch the system off
➢
Switch it on again after
60 minutes
➢
Check the ambient
temperature (should not
be below 0°C or higher
than 43°C)
1. Check the function of the condenser fan
➢
Check the electrical connection of the fan
(connector in the condenser)
➢
Check the connector on the PCB
➢
Check the fuse for the condenser fan.
Never replace only the fuse, always replace it
together with the fan.
➢
Replace the condenser fan.
2. When the condenser fan is OK, the system has
to be sent in
F04
not assigned
F05
Overload caused by the
fans (excessive current
draw)
Short circuit on the
condenser fan or evaporator
fan
Check if the fans are blocked
or moving with difficulty.
1. Check the condenser fan
➢
Turn the fan manually and restart the system
➢
Check the fuse
➢
Replace the fan and the fuse.
Never replace only the fuse, always replace it
together with the fan.
2. Check the evaporator fan and carry out the
same procedure.
F06
Communication problem
between the display PCB
and the control PCB
Faulty wiring
Check the bus cable
1. Perform a software update for the display PCB
and the control PCB
2. Replace the bus cable
