REMKO RVD xxx DC - Manual (Page 29)

Troubleshooting and customer service
The equipment and components are manufactured using state-of-the-art production methods and tested several times
to verify their correct function. If malfunctions should occur, please check the functions as detailed in the list below.
Please inform your dealer if the unit is still not working correctly after all the functional checks have been performed!
Malfunction
Fault Possible cause Checks Remedial measures
The unit does not start
or switches itself off
Power outage, undervoltage,
defective mains fuse / main circuit
breaker switched off
Are all other
electrical installations functioning
correctly?
Check voltage
possible wait until turned on
again.
Damaged mains cable
Are all other
electrical installations functioning
correctly?
Repair by
a specialist
Waiting time after switch-on too
short
Have approx. 5 minutes
elapsed since the restart?
Schedule longer waiting
periods
Temperature outside operating
range.
Are the fans in the indoor unit
and outdoor component working
correctly?
Take into account the tempera-
ture range for the indoor unit and
outdoor component
Overvoltages caused by thunder
storms
Has there recently been lightning?
Switch off the mains breaker and
switch it back on. Have it checked
by a specialist
Fault in external condensation
pump
Did the pump shut down due to
a fault?
Check and if necessary clean the
pump
High-pressure / low-pressure
monitors have triggered Check refrigerant pressure and
look for leaks if necessary
Rectify leakage and re-start
The unit does not respond
to the remote control
Transmission distance too far /
receiver affected by interference
Does the indoor unit beep when
pressing a button?
Reduce the distance to less than 6
m or change position
Defective remote control
Is the unit running in manual
mode?
Replace the remote control
Receiver or transmitter unit ex-
posed to excessive solar radiation
Does it function correctly in the
shade?
Place the receiver&transmitter unit
in the shade
Electromagnetic fields are interfer-
ing with transmission
Does it function when switching off
possible sources of interference?
Signal is not transmitted when in-
terference sources are operational
Button in remote control jammed
/ two buttons pressed at same
time
Does the “Send”
symbol appear on the display?
Release the button / only press
one button
Batteries in remote control are flat
Have new batteries been inserted?
Is the display incomplete?
Insert new batteries
The unit is running with
reduced or without
reduced cooling / heating
performance
Filter is unclean / air inlet / outlet
blocked by foreign items
Have the filters been cleaned? Clean the filters
Windows and doors open. Heat-
ing/cooling output increases
Have there been any construc-
tional /
application-related
changes?
Close windows and doors / install
additional units
Neither cooling nor heating mode
has been set
Does the cooling symbol appear
on the display?
Correct the settings for the unit
Fins on outdoor component
blocked by foreign items
Is the fan on the outdoor com-
ponent running? Are the fins
unobstructed?
Check the fan or winter controller,
reduce the air resistance
Leaking refrigerant circuit
Are there signs of frost on the fins
of the indoor unit?
Repair by specialist
Outdoor component iced up
Check outdoor component. Has
the cassette sensor on the outdoor
component been correctly posi-
tioned?
De-ice and fit the sensor at the
point where the most ice forms
Condensation discharge
on unit
Drainage pipe on collection con-
tainer clogged / damaged
Can the condensation drain off
without any obstruction?
Clean the drainage pipe and col-
lection container
Faulty external condensation
pump or float
Is the collection tray full of water
and the pump not running?
Call out a specialist to replace the
pump
Condensation has not drained
away and has collected in the
condensation line
Is there a steady fall on the con-
densation pipe? Check there is no
blockage in the pipe.
Ensure there is a fall when laying
the condensation pipe and clean
the pipe.
Condensation does not drain off
Are the condensation lines un-
blocked and is there a steady fall?
Are the condensation pump and
float switch functioning correctly?
The condensation line must have
a fall. If necessary, clean the pipe.
A faulty condensation pump and
float switch should be replaced.
Float is stuck or jammed due to
excessive dirt.
Are the LEDs on the receiver unit
of the indoor unit flashing?
Should be cleaned by specialist firm
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