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5
Servicing
5
Servicing
The display of the BC10 in the boiler always shows a code
when the boiler is operational. It may be necessary to press the
service button (see fig. 41, item 2) once or twice to see the
code.
The display will show normal operating codes (see subsection
5.1), non-flashing fault codes and flashing fault codes (see
subsection 5.2).
The normal operating codes lets the installer know what the
current operational status is of the boiler.
A non-flashing fault code is mostly not too serious. Often the
code disappears after a while, there is no need to reset the
boiler.
A blinking fault code however is a blocking code. This means
that the boiler will not operate until the problem is solved and/or
the boiler is reset.
UBA 3
The LED on the UBA 3 (see fig. 57, item 1) can also give useful
information.
– When the indicator LED is off, then the boiler is operating
normally.
– The LED flashes when there is a blocking fault code.
– The LED flashes quickly for 10 sec. when the boiler is fired
for the first time.
– The LED is on when there is a problem with the UBA 3 or
when it doesn't recognise the KIM.
– The LED comes on shortly after the electricity is switched
on.
Subject to modifications resulting from technical improvements!
36
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 28C • 01/2004
1
fig. 57 UBA 3
pos. 1:
red indicator LED
Boulter Buderus Ltd. • http://www.boulter-boilers.com
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