Fuses And Reset Buttons On The Heat Pump; All Alarms - Bosch EHP 6-11 LW User And Installation Manual

Fuses and reset buttons on the heat pump

LWM model

All alarms

An alarm can sometimes occur temporarily due to various reasons.
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 you an idea about the
nature of the alarm and what you can do to rectify it. The text often
refers to different fuses and reset buttons on the heat pump. These
are shown in the fi gures above.
Particle fi lter
Cleanable, with shutoff switch.
Fuse 1
Reset for motor cut-out compressor.
Fuse 2
Reset switch for the heat pump's
miniature circuit-breaker.
Fuse 3
Reset switch for the electric
cassette's miniature circuit-breaker.
Fuse 4
Reset button for the electric
cassette overheat protection.
Note: The button must be pressed in
fi rmly.
Sight glass
31
What to do if a fault occurs
LW model
Sight glass
List of all alarms:
Motor cut-out compressor
Motor cut-out HTF pump
Compressor temperature
Low pressure switch
High pressure switch
Electric cassette
Power failure (3-phase)
3-phase incorrect (3-phase)
High return to the heat pump
Heat transfer fl uid out max
High heat transfer fl uid delta
Sensor fault
Heat transfer fl uid in under limit and heat
transfer fl uid out under limit
Protective anode