ENGLISH
6.4 - ELIMINATING FAULTS
For the codes listed on this page,
it is not necessary to press button
“D” to display the error code.
D
System pressure too
low
How to elimi-
nate the fault:
-
-
If water pressure must be con-
tinually restored, contact an
Authorised Unical Assistance
Centre.
Burner ignition block
How to elimi-
nate the fault:
After 3 interventions of the boil-
er blocking device, do not try to
resume operation of the boiler
by yourself. Contact an Author-
ised Unical 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 Assistance
Centre.
UNICAL AG S.p.A.
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Provisions for proper disposal of the product in accordance with Directive 2002/96/EC