Maintenance - Ariston HS C 24 FF NG Manual

Operation shutdown
This type of error is "non-volatile", which means that it is not
removed automatically.
On the display flash Err and the error code (es. Err/501), and
appears the symbol .
In this case the boiler does not restart automatically, but it may
be reset by pressing the RESET button.
If the problem manifests itself again after several attempts to
reset the appliance, contact a qualified technician.
HS C
Important
If this shutdown occurs frequently, contact an authorised service centre
for assistance. For safety reasons, the boiler will allow a maximum of 5
reset operations to take place in 15 minutes (individual presses of the
RESET button). If the shutdown is occasional or an isolated event, this is
not Necessarily a problem.
Operation shutdown error table
Display Description
1 01
Overheating
1 03
1 04
1 05
Flow Check Failed
1 06
1 07
1 08
Filling Needed
3 05
PCB Fault
3 06
PCB Fault
3 07
PCB Fault
5 01
No flame detection
Anti-frost Device.
The anti-frost function acts on the central heating flow temperatu-
re probe, independently from other regulations, when the electrical
supply is turned on.
If the primary circuit temperature falls below 8°C the pump will
run for 2 minutes.
After the two minutes of circulation (fixed) the boiler will check
the following:
a) if the central heating flow temperature is > 8°C, the pump
stops;
b) if the central heating flow temperature is between 4 and 8°C,
the pump will run for another two minutes;
c) if the central heating flow temperature is < 4°C, the burner will
fire (heating position) at minimum power until the temperature
reaches 33°C, the burner will go out and the pump will conti-
nue to run for two minutes.
If the flow temperature remains between 4-8°C the pump will
continue to run for two minutes for a maximum of 10 times
unless a temperature above 8°C is detected in the central hea-
ting flow, after this the the burner will fire. If lockout is caused by
overheat the burner is kept OFF.
The anti-frost device activates only when (with the boiler opera-
ting correctly):
- the system pressure is correct;
- the boiler is electrically powered;
- there is a supply of gas.
Change of gas type
Our boilers are designed to function either with Natural
Gas (methane) or L.P.G. gas. If you need to change from
one gas to the other, one of our Authorised Service Cen-
tres must be contacted to convert the appliance.

Maintenance

Schedule an annual maintenance check-up for
the boiler with a competent person.
Correct maintenance always results in savings
in the cost of running the system.
Failure to arrange an annual service for the
appliance will invalidate the second year of the
manufacturers guarantee.
USER'S MANUAL
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