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Servicing
5.1
Operating codes
NOTE
If the code displayed on the burner-control unit
is not listed under the operating codes or fault
codes, the burner-control unit itself is malfunc-
tioning.
Display after
Meaning
pressing the
service button
0
600 - 28C is ready for operation
0A
Burner interval circuit, 10 min. from burner start-up
0C
Waiting for activation of the three-way valve (if fitted) or pump
0H
Stand-by activated, 600 - 28C ready to provide heat or hot water
0L
Initial safety period: self-testing of burner-control unit during burner start-up
0U
Post- or pre-purging period of fan unit
0Y
Flow temperature at adjustment setting
-
600 - 28C running in heating mode
"Chimney-sweep" mode, flow-temperature controller bypassed, 600 - 28C heating to previously-entered flow
-A
temperature.
-H
Normal heating mode
-Y
Service mode
=
600 - 28C running in hot-water mode
=H
Normal hot water mode
r
Reset
rE
Reset (when the reset button is pressed on the BC10, the boiler will attempt to fire up)
Table 9
BC10 operating codes (after pressing the service button)
Subject to modifications resulting from technical improvements!
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 28C • 01/2004
Boulter Buderus Ltd. • http://www.boulter-boilers.com
5
37
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