Heat pumps AIR / WATER
Operation manual 37
Compressor not running - electrical
fault, balancing problems of the
power grid (undervoltage at some
stage)
Check that the
compressor is rotating. If
not, call service.
Heating of service water to a higher
temperature (antisepsis) was not
achieved within the set time
Check the heating bar
circuit breaker, check the
safety settings. boiler
thermostat
Compressor communication fault
Problem with compressor-driver
Problem with compressor-driver
5. Regular checks
5.1 Inspection of intake and exhaust grilles and openings
Check the front grille of the fan and evaporator at regular intervals for contamination with
leaves, papers or other rubbish. If necessary, clean with the heat pump off.
Never insert foreign objects into the external unit of the heat pump! The
heat pump operates in intermittent automatic operation, the fan operates
at high speed and may be pose risk of injury.
5.2 Checking the cooling circuit
Attention, unit contains flammable coolant!
In case of coolant leakage, disconnect the device from the power supply
and contact service!
The cooling circuit is hermetically sealed and maintenance-free. Its regular revisions are not
necessary and there is no need to keep a logbook.
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