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ENGLISH
6.4 - ELIMINATING FAULTS
Troublesome ue gas exhaust
the ignition cycle.
-
-
UNICAL AG S.P.A.
-
or installation regulations in force
-
tion.
starts
D”
System pressure too
low
How to elimi-
nate the fault:
-
-
If water pressure must be con-
tinually restored, contact an
Authorised Unical AG S.p.A.
Assistance Centre.
Burner ignition block
Burner blocking device triggered
- no gas
.
How to elimi-
nate the fault:
the boiler.
After 5 interventions of the boiler
blocking device, do not try to
resume operation of the boiler
by yourself. Contact an Author-
ised Unical AG S.p.A. Assistance
Centre.
Safety thermostat intervention
(due to air)
How to elimi-
nate the fault:
For all the other error codes, the user is NOT
authorised to resume boiler operation by him-
self. Contact an Authorised Unical AG S.p.A.
Assistance Centre.
service
service
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