Actions with operating disturbances
35
For the Installer
FIGHTER 1210
Alarm lamp flashes and the text
HP/MSalarm is displayed
Cause: Bad circulation in the heating medium
circuit.
Action: Check the heating medium pump (16).
Possibly open the radiator thermostats.
Check that the particle filter (63) is not
clogged.
Once the fault cause has been rectified set switch (8)
to “0” and then to “1”.
If the alarm lamp still flashes the motor cut-out has
tripped due to the following causes.
Cause: Dropped phase or temporary mains
disturbance.
Action: Check the fuses.
Cause: Overloaded compressor (27)
Action: Call qualified service personnel.
Cause: Mechanical fault on the compressor (27)
Action: Call qualified service personnel.
Cause: Defective motor protection (26).
Action: Call qualified service personnel.
Cause: Fine-wire fuse on the relay card has blown.
Action: Replace the fuse.
Alarm lamp flashes and the text
LP–alarm is displayed
Cause: Start up of cold installation
Action: Use Electric boiler mode.
Cause: Bad circulation in collector system due to
inferior venting/low pressure or ice (if ice
has formed the brine pump (35) will be
warm).
Action: Vent and top up the fluid. Wait a few hours.
Cause: Circulation pump (35) not running.
Action: Check the circulation pump.
Cause: Lack of refrigerant or other fault in the
cooling circuit.
Action: Call qualified service personnel.
Cause: Iced evaporator due to too low antifreeze
concentration
Action: Check the freezing point off the brine.
After taking action, check that the difference on the
display between Brine In and Brine Out is 2 – 5 °C
when the compressor is running. (See Control Infor-
mation available on the display, point 4).
Once the fault cause has been rectified set switch (8)
to “0” and then to “1”.
In the event of a temperature sensor error, this is
indicated on the display, e.g. “out error”
NOTE!
The fault status must not be repeatedly
reset, as there is a risk of overheating
the motor windings.
Indications
If the operating disturbance cannot be rectified by means of the above an installation
engineer should be called.
