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BC10 basic controller 10
37
We reserve the right to make any changes due to technical modifications!
Installation and Servicing Instructions Logamax plus GB142-24/30/45/60 • Version 12/2004
Buderus Hydronic Systems • http://www.buderus.net
Resetting the appliance or resetting faults
If the appliance is down due to a fault, you can reset the
appliance by pressing the "Reset"
button. This is only
possible for so-called lock-out faults. There is another
type of fault, so-called blocking faults, that reset them-
selves when the cause has been remedied.
z Press the "Reset"
button to reset the appliance.
The display shows "U(" while resetting.
It is only possible to reset the appliance when a lock-out
code (blinking fault code) is visible in the display.
10.1.3 Displaying the heating system status and/or
faults
The display of the BC10 basic controller shows the
status of the heating system.
In the event of a fault the display immediately shows the
fault or the warning in the form of an error code (see
subsection 16.2). The status display will flash if the fault
is a lock-out fault.
z Press the "Service"
button to switch between
status displays or to read out the service and error
codes.
z Resolve the fault see subsection 16.3.
The following status displays can be seen depending on
the operating conditions:
U(
NOTICE
If the burner returns to fault mode after reset-
ting the appliance, you must resolve the fault
using the servicing section in this document.
Contact your supplier if necessary.
Displays
(examples)
Values Meaning Operating condition/Remedy
1
number
0 ... 199
Current heater water temperature (in °F)
> P15 Current system pressure (in psi) Normal operating conditions
1
(changing)
P3 ... P12 Warning:
System pressure is too low (between 3 and 12 psi
= 0.2 and 0.8 bar)
Warning
Heating system remains operational
between 12 psi and 3 psi (0.8 and 0.2 bar).
Fill the heating system and restore the
minimum filling pressure (t 14.5 psi =
t 1.0 bar).
The system pressure is shown for
10 minutes after which the standard
display returns.
number
0 ... 199
Current heater water temperature (in °F)
P3 ... P12 Current system pressure (in psi)
Table 9 Possible status displays
1
Standard display for this operating condition. This display appears after 5 minutes if no button is pressed.

3
+
3
+
+

3
37


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