REMKO RXS xxx H - Manual (Page 8)

Fault Possible cause Checks Remedial measures
The unit does not start
or switches itself off.
Power outage, undervoltage
Are all electrical installations
functioning correctly?
Check voltage,
if necessary wait before
switching back on
Defective mains fuse
Main circuit breaker is open Are all lighting circuits
functioning correctly? Replace mains fuse
Close main circuit breaker
Damaged mains cable
Are all electrical installations
functioning correctly? Repair by
a specialist
Waiting time after switch-on too
short Is there a restart after
approx. 5 minutes?
Schedule longer waiting times
Temperature outside
operating range Are the fans in the
unit still working? Observe the temperature
ranges
Occasional overvoltage
or undervoltage Check by a
specialist Turn the equipment off
and back on
Switch-off contact in external
condensation pump has opened
Is the external condensation
pump on the indoor unit
"faulty”? Clean the condensation pump
drain
Have the pump replaced
The unit works at
reduced or no cooling/
heating output
Air inlet and/or air
outlet are blocked
by debris
Debris in air inlet
and outlet? Clean the fins
Reduce the air resistance
Thermal or wind load
has increased
Have there been any
constructional /
application-related
changes? Reduce the thermal/wind
loads by implementing
appropriate
measures
No heat output possible
Is the fan on the outdoor
component running? Fan / winter controller
should be checked
Leaking refrigerant circuit
Are there signs of severe frost on
the large stop valve? Repair by
a specialist
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. For installations
with an indoor unit and outdoor component, refer to the chapter "Troubleshooting and customer service" in both
manuals. Please inform your dealer if the unit is still not working correctly after all the functional checks have been
performed!
Troubleshooting and customer service
Malfunction
The suction pipe
and / or liquid
separator on the
compressor
have iced up
Thermal load has increased
Is the outdoor component
running continuously?
Reduce the thermal load
If necessary, install an
additional unit /
Insulate the iced up components
REMKO RXS H
8