Eliminating Faults - Unical ALCON Instrucciones De Uso

Complete decommissioning
To decommission the system, disconnect
the boiler from the power supply by acting
on the main switch ''Q'', display ''E'' is OFF.
In the event of complete decommission-
ing, the heating (* and hot water produc-
tion modes) as well as the antifreeze
protection are completely disabled.
If idle for long periods, close the gas
present.
Antifreeze protection only
The boiler is equipped with an antifreeze protection system.
To activate the antifreeze function only
Press ''BLUE'' key, led indicator "M" switched
The antifreeze protection intervenes only if
the boiler is powered electrically and if the
gas valve is open.
If for some reason there is a power or gas
failure, the antifreeze protection described
above is not active.

4.4 - ELIMINATING FAULTS

When the boiler detects an operation anomaly or it is blocked
due to a permanent fault, the symbol
light up.
The code which
place of the centigrade temperature scale by pressing the
LIGHT BLUE "S" reset key (for the list of error codes refer
to Chapter 5 – "Error codes" in the servicing and installation
instructions
If the boiler goes into lock-out the user can reset the boiler
only in the following cases:
- Burner lock-out led illuminated
Burner ignition block
Burner blocking device triggered due to:
- gas
- air in pipe (when system is new or after
long idle
on the duisplay
the cause can be viewed in
no
period).
How to eliminate Check that the gas valve is open and press
the fault the unblock button to resume the proper
operation of the boiler.
After 3 interventions of the boiler block-
ing device, do not try to resume opera-
tion of the boiler by yourself. Contact an
Authorised Unical Assistance Centre.
For all the other error codes, the user is NOT authorised
to resume boiler operation by himself. Contact an Author-
ised Unical Assistance Centre.
UNICAL AG S.p.A. disclaims any liability
for damage caused as a result of improper
installation, use, appliance conversion or
for non-compliance with the instructions
supplied by the manufacturer or installa-
tion regulations in force concerning the
material in question.
4.5 - SERVICING REQUEST
)
Code (flashing
Cause:
The appliance needs servicing
This request is signalled after 10.000 ignitions or 2.000 hours
of burner operation.
Note: The code flashing
correct boiler operation.
Please contact an authorized Unical After Sales Service
Centre for servicing the boiler at regular intervals.
will not impede
7