Troubleshooting And Customer Service - REMKO KWK Series Operation,Technology,Spare Parts

REMKO KWK / KWK-ZW

Troubleshooting and customer service

The unit and components are manufactured using state-of-the-art production methods and tested several
times to verify that they function correctly. However, if malfunctions should occur, please check the functions
as detailed in the list below. With systems for cooling or heating with indoor units, chillers or heating systems
the chapter "Troubleshooting and customer service" in all operating manuals must also be observed. Please
inform your dealer if the unit is still not working correctly after all function checks have been performed!
Malfunction
Malfunction
The unit does not start or
switches itself off.
The unit is running but
only provides reduced
or no cooling or heating
output.
Condensate discharge
on unit.
Medium outlets on
the unit.
10
Possible cause
Power failure, low voltage,
main fuse defective / main
switch turned off.
Power supply cable damaged.
Power surge due
to thunderstorm.
External condensate pump
alarm.
Controller not activated.
Valve assembly jammed,
not working, not yet fully
activated.
Filter is dirty / air inlet / outlet
opening is blocked by debris.
Windows and doors open.
Heating / cooling output has
increased.
Cooling mode is not set.
Medium temperature in
cooling mode too high.
Medium temperature in
heating mode too low.
Drain pipe of collector
reservoir blocked / damaged.
Insulation missing from
components carrying the
medium.
The condensate drainage line
still contains non-discharged
condensate.
Condensate cannot drain /
external condensate pump
or float defective.
Medium cycle / bleeding
valve leaking.
Checks
Does all other electrical
equipment function correctly?
Does all other electrical
equipment function correctly?
Have there been lightning
strikes in the area recently?
Has the pump shut down due
to a malfunction?
Has the operating mode /
controller been correctly set?
Is there any electrical power
at the valve head or has
the time period of 3 minutes
after activation passed?
Have the filters been cleaned?
Have structural / usage
modifications been made?
Is the cooling symbol
in the chiller / heat pump
display activated?
Is the inlet temperature
approx. + 5 ...+ 10 °C and is
the circulation pump working?
Is the inlet temperature
approx. + 25 ...+ 45 °C and is
the circulation pump working?
Can the condensate drain off
without any obstruction?
Do all the medium-carrying
components outside the drip
area have vapour diffusion
barrier insulation?
Is there an incline on
the condensate drainage line
and is it clear?
Are the condensate drainage
lines clear and is there an
incline? Are the condensate
pump and liquid level switch
functioning correctly?
Can any leaks be seen on
components carrying medium?
Remedial measures
Check the voltage and if necessary
wait for it to come back on.
Repair by specialist firm.
Switch off the mains breaker
and switch it back on. Inspection
by certified service centre.
Check and clean the pump
if necessary.
Check the setting and operation.
Have the valve head replaced
or wait for time period to pass.
Clean filters.
Close windows and doors / install
additional systems.
Correct the unit's settings.
Reduce the medium temperature.
Increase the medium temperature.
Clean the drainage pipe and
collection container.
Have vapour diffusion barrier
insulation properly installed.
Route the condensate drainage line
with an incline and clean it.
Route the condensate drainage
line with an incline and clean
it. If the liquid level switch
or the condensate pump is
defective, have them replaced
by a specialist company.
Have leaks sealed by a specialist
company.