7
ENGLI
SH
6.4 - ELIMINATING FAULTS
Troublesome flue gas exhaust
BOILERS WITH FORCED DRAUGHT
In the event the unblock button is NOT pressed,
after 10 minutes the boiler in any case reattempts
the ignition cycle.
BOILERS WITH NATURAL DRAUGHT
After the sensor has cooled, unblock the boiler by
pressing the unblock key.
It is strictly forbidden to tamper
with and/or exclude the device
.
Schuster
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
installation regulations in force
concerning the material in question.
When the boiler detects an operation anomaly or
it is blocked due to a permanent fault, the control
panel display lights up, and the symbol (
service
) starts
to flash.
If the fault is permanent, the error code is displayed
in place of the degrees centigrade.
For the codes listed on this page,
it is not necessary to press button
“D”
to display the error code.
by pressing the unblock button “
D
”
the code that identifies the cause is
displayed, flashing, in place of the
degrees centigrade,
(for the “error codes” list see par.
4.6 installation and maintenance
instruction manual).
The user can intervene to restore proper operation
only in the following cases:
System pressure too
low
How to elimi-
nate the fault:
Restore the correct pressure value
by acting on the boiler filling valve
(for optimum operation, the pres-
sure value should be within 0.8
and 1 bar).
When the minimum pressure value
is reached (0.6 bar), boiler opera-
tion is resumed.
If water pressure must be con-
tinually restored, contact an
Authorised Assistance Centre.
Burner ignition block
Burner blocking device triggered
due to:
- no gas
- air in pipe (when system is new
or after long idle period)
.
How to
eliminate the
fault:
Check that the gas valve is open
and press the unblock button to
resume the proper operation of
the boiler.
After 3 interventions of the boiler
blocking device, do not try to re-
sume operation of the boiler by
yourself. Contact an Authorised
Assistance Centre.
Safety thermostat intervention
(due to air)
How to elim-
i n a t e t h e
fault:
Bleed the air from the radiators and
restore system pressure.
For all the other error codes, the user is NOT
authorised to resume boiler operation by him-
self. Contact an Authorised Assistance Centre.
service
