External Cleaning; Operational Faults - Biasi Advance Plus 16S User Manual And Installation Instructions

• pressurisation of the expansion tank;
• filling up of the central heating circuit;
• bleeding of air from the central heating sys-
tem;
• general check of the appliance's operation.
3.5

External cleaning

Before carrying out any cleaning,
disconnect the appliance from the
electrical mains, using the fused
spur isolation switch fitted adja-
cent to the appliance.
To clean the external panels, use a cloth
soaked in soapy water. Do not use solvents,
abrasive powders or sponges.
Do not carry out cleaning of the appliance and/
or its parts with readily flammable substances
(for example petrol, alcohols, naphtha, etc.).
3.6

Operational faults

If the boiler does not function and a code that
alternates between the letter Er and the writing
RESET (see "LCD general features" to page
10) appear on the LCD display, it indicates that
the safety lock-out has stopped the boiler. The
display background flashes (Fig. 3.3).
RESET
RESET
Fig. 3.3
USEFUL ADVICE
For the first lighting up and following mainte-
nance procedures for the gas supply, it may
be necessary to repeat the resetting operation
several times so as to remove the air present
in the pipe work.
Safety lock-out may occur even in case of a
blockage of the condensate drainage (e.g.
plugged drain pipe). It is advisable to check
the condensate drainage pipe and traps for
cleanness.
Press the reset key on the boiler control panel
11 (Fig. 3.1) to reset its functioning.
Other operational faults signalled on the
LCD display
If the LCD display displays a code that alter-
nates between the letter Er and the
the boiler has an anomaly that cannot be reset.
The display background flashes (Fig. 3.4).
Fig. 3.4
In this case and in case of persis-
tent lock-out call a competent and
responsible Service Engineer.
In order to reset good functioning
of the boiler, call a competent and
responsible Service Engineer.
symbol,
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