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MAINTENANCE
4 .2 Troubleshooting
If an abnormal behaviour of the heat pump heater is observed,
without the presence of the alarms described in paragraph
"Alarm description", before contacting the technical service
check, using the table below, whether the fault can be easily
solved.
FAULTS
POSSIBLE CAUSES
there is no electricity
The heat pump heater
does not turn on
the main switch is open
the safety times set have not yet
passed
Compressor and/or
fan doesn't start
there is no load demand
the electrical connection is slack
Frequent starts and
the values set for set point and / or
stops of the heat
differential are incorrect
pump heater
there is an excessive heat load
The heat pump heater
continues working
the values set for set point and / or
without stopping
differential are incorrect
the coating shells vibrate
The system produces
unusual noises and
the air duct and / or water pipes
vibrations
vibrate
The electric heating
element does not
the start-up is not necessary
switch on
As a general rule however, before calling for service try to power
cycle the unit.
9
If the user is not able to fix the problem, turn OFF the unit
and contact an authorized service centre, indicating the
identification data listed on the nameplate.
4 .3 Recycling and disposal
When they are no longer used, the heat pump heaters
NexPro Plus shall be disposed of in compliance with the current
regulations.
In particular, European Directive 2012/19/EU on waste electrical
and electronic equipment requires their disposal outside the
normal municipal solid waste stream. The dismissed units must
be separately collected to optimise the rate of recovery and recy-
cling of the materials that compose them and prevent potential
damages for health and environment.
The main materials that compose the heat pump heaters
NexPro Plus are:
− Steel
− Magnesium
− Plastic
− Copper
− Aluminium
− Polyurethane.
− R134a
Do not release the refrigerant into the environment. Recover and
dispose of it in compliance with the current regulations
R
R
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