37
What to do if a fault occurs
Fuses and reset buttons on the heat pump
Fuse 4
Reset button for the electric
heater overheat protection.
Note: The button must be pressed in
fi rmly.
Fuse 1
Reset for motor cut-out on compressor.
Fuse 2
Reset switch for the heat pump’s
miniature circuit-breaker.
Fuse 3
Reset switch for the electric heater’s
miniature circuit-breaker.
Motor cut-out compressor
Motor cut-out HTF pump
Compressor
temperature
Low pressure switch
High pressure switch
Electric
heater
High return temperature to the heat pump
Heat transfer fl uid temperature
High heat transfer fl uid delta
Sensor
fault
Heat transfer fl uid temperature in under
limit and heat transfer fl uid temperature
out under limit
Protective
anode
List of all alarms:
All alarms
There are many reasons why an alarm occurs. However, there is
never a risk involved in resetting an alarm. All the alarms that can
appear in the menu display are described on the following pages.
The descriptions give an idea about the nature of the alarm and
how to rectify it. The text often refers to different fuses and reset
buttons on the heat pump as shown in the diagram above.
