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Troubleshooting 7
0020250185_00 geoTHERM Operating instructions 15
6.3 Caring for the product
Caution.
Risk of material damage
caused by unsuitable clean-
ing agents.
Do not use sprays, scouring
agents, detergents, solvents
or cleaning agents that con-
tain chlorine.
Clean the casing with a damp cloth and
a little solvent-free soap.
6.4 Checking the system pressure
Check the filling pressure of the heating
installation every day for a week after
initial start-up and maintenance work,
and then twice a year.
Operating pressure range:
0.07 MPa ( 0.70 bar)
Filling pressure too low:
Inform your competent person so
that he can add heating water and
increase the filling pressure.
6.5 Checking the brine circuit's
filling pressure
Check the filling pressure of the brine
circuit every day for a week after initial
start-up and maintenance work, and
then twice a year.
Brine fluid operating pressure range:
0.15 0.20 MPa (1.50 2.00 bar)
Conditions: Filling pressure too low:
Inform your competent person so
that he can add the appropriate
brine fluid only and increase the
filling pressure.
Note
If the filling pressure falls be-
low 0.05 MPa (0.5 bar), the heat
pump is automatically switched
off and a fault message is dis-
played.
6.6 Reading maintenance
messages
If the symbol is shown in the display,
the product requires maintenance work.
The product is not in fault mode; it contin-
ues to operate.
Consult a competent person.
7 Troubleshooting
7.1 Fault message
Fault 01/3
Back
514
Sensor fault: Temp.
Compressor inlet
Delete
Fault messages have priority over all other
displays. If a fault occurs in the heat pump,
it is the display that shows a fault code,
rather than the basic display.
Example using F.514: "Temp. sensor fault:
Compressor inlet".
If several faults occur at the same time,
the display shows the corresponding fault
messages for two seconds each in alterna-
tion.
Caution.
Risk of damage caused by
improper troubleshooting
The heat pump system may
become damaged if you carry
out troubleshooting yourself.
Do not press the reset button
more than once.
In this case, inform your
competent person or contact
Vaillant customer services.
Inform your competent per-
son if faults that are not de-
scribed in these operating
instructions occur.
15


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