8
Troubleshooting and customer service
The unit has been manufactured using state-of-the-art production methods and tested several times to
ensure its correct function. If malfunctions should occur, please check the unit as detailed in the list below. If
all functional checks have been carried out and the device still fails to operate properly, then please notify
your nearest specialist dealer.
Functional trouble
Fault description
Cause
Remedy
The unit does not start
Mains failure
Check voltage and if necessary wait
until power is back on
Mains fuse or controller fuse
faulty
Arrange to have exchanged
Mains plug not inserted in
socket
Insert mains plug
Condensate container full,
display "DRAIN WATER"
flashes
Empty container via condensate drain
hose
Timer mode active
Wait for timer period to expire or press
"I / 0" button again
The unit is running with Reduced
ventilation output
Used air or outlet openings
soiled or blocked by foreign
bodies
Clean the openings Remove foreign
bodies
Filter soiled
Clean the filter in accordance with the
instructions
Outdoor unit soiled
Clean the fins on the inside of the out-
door unit
Cooling load of the room
excessive
Reduce the thermal load
Condensate leaks out of the unit
Device standing at an angle
Position vertically, ensure stable posi-
tioning
Plugs missing from conden-
sate drain hose
Seal the hose so that it is watertight
again
Error codes
In the following error codes, please contact your specialist dealer:
Error codes
Fault description / note
01
I/O PCBA error communication
02
Air intake sensor defective
03
Evaporator sensor defective
32
Liquid line sensor defective
33
Hot gas sensor compressor defective
35
Compressor speed is not correct
36
Compressor over temperature
REMKO RKL
18
Содержание RKL 491 DC
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