REMKO RWK 260 - Manual (Page 11)

11
Troubleshooting
This unit has been designed based on state-of-the-art manufacturing methods and it has been tested repeatedly to
ensure that it is working properly. However, should problems occur, refer to the following list.
Please keep in mind that the indoor units are supplied with power via the outdoor units. As a result, we also
recommend reading the "Troubleshooting" section in the operating instructions for the outdoor unit.
Before any work on the units is performed, they must be disconnected from the power sup-
ply (fuse or repair switch) and prevented from being inadvertently switched on!
Should the unit still not work after performing these functional checks, please contact the closest dealer or
REMKO GmbH & Co KG. directly.
Problem Possible cause Check Remedy
The unit does not start
or it switches itself off
automatically. Power failure, power too low Are all other electrical components
working? Check current and wait for the device
to start again
Power fuse / power supply defective Are all currents for lighting functional? Replace power fuse /
Switch on main switch
Power supply line damaged Are all other electrical components
working? Maintenance by authorised personnel
Amount of time waited after switching
unit on was too short Did approx. 5 minutes elapse after
restarting? Plan for longer waiting periods
Operating temperature too low /
too high Are the fans on the indoor unit and
outdoor unit working? Pay attention to temperature ranges of
indoor unit and outdoor unit
Excess current caused by thunder-
storms Was there recently lightning in the
region ? Switch the system off and then back on
again / Maintenance by authorised
personnel
Problem with the external condensa-
tion pump Did the pump switch off due to a mal-
function? Check pump and clean if necessary
Sensors that are defective or not
properly attached Is the indoor unit displaying an error
message? Maintenance by authorised personnel
The indoor unit is not
responding to the re-
mote control. Timer set to “ON” Is the timer set? Delete programming and wait for the
unit to start
Polarity of batteries incorrect after
replacement Is the polarity correct? Insert batteries with the correct polarity
Transmission distance too great /
reception blocked Is there a transmission signal when
the button is pressed? Reduce distance to under 7 m and
change location
Remote control defective Does the unit work in manual mode? Replace remote control
Too much direct sunlight on the re-
ceiver or transmitter Does the function work in the shade? Place the transmitter or receiver in the
shade
Electromagnetic fields are disrupting
transmission Does the unit work after potential
causes of disruption have been elimi-
nated? No signal transmission when sources
of disruption are operated simultane-
ously
Remote control buttons stuck / two
buttons pressed at once Does the symbol appear on the
display? Unstick button / only press one button
Dead batteries in the remote control Are the batteries new? Is the display
incomplete?
Insert new batteries
Temperature setting too high Is the selected temperature above the
room temperature? Reduce selected temperature
The device is either not
cooling at all or only a
little bit. Filter is dirty / intake / outlet opening
is blocked by foreign bodies Have the filters been cleaned? Clean filters
Windows and doors are opened /
increased amount of warm air or cold
air Have there been changes in design or
use? Close the windows and doors / mount
additional systems
Cooling mode is not set Does the Cool symbol (COOL)
appear on the display? Correct the unit settings
Plate fins of the outer unit are
blocked by foreign bodies Is the fan of the outdoor unit working,
are the plate fin exchangers moving
freely? Check the fan or winter control mecha-
nism, reduce air resistance
Cold cycle is not leak proof Is there a build-up of frost visible on
the plate fin exchangers of the indoor
unit? Maintenance by authorised personnel
Condensation water is
leaking from the indoor
unit. The drainage pipe of the condensa-
tion collector is blocked / damaged Can condensation flow freely? Clean the drainage pipe and the con-
densation collector
External condensation pump or float
regulator is defective Is the collector filled with water and
the pump is not working? Have pump checked by authorised
service centre