REMKO RKL 491 DC - Manual (Page 18)

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
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
37 Liquid line heat exchanger is too high
REMKO RKL
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