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13.5
BC10 Display codes
The following table contains all codes that can show on the BC10
display. To show the current display code and/or sub code, press the
e
"Service"
button repeatedly.
There are 3 main code groups:
• Operating codes - this code gives the status of the boiler. No action is
necessary.
Main display
Sub display
code
code
Key to display code
[\/-/\|
Operating phase:
Communication test while starting up. This display code flashes 5 times
within 5 seconds while starting up to indicate that the communication
between the UBA 3 and the BC10 basic controller is being tested. If a new
UBA 3 or a new KIM was fitted, this code will flash for max. 10 seconds.
[\/-/\|
Blocking fault:
If this code continues to flash on the display, there is a fault in the
communication between the UBA 3 and the BC10 basic controller.
[-/a/\|
[2/0/8|
1)
Operating phase:
The boiler is in flue gas test or service mode.
[-/h/\|
[2/0/0|
1)
Operating phase:
The boiler is in heating mode
[-/h/}
[2/0/0|
2)
Operating phase:
The boiler is in manual operation mode.
[=/h/\|
[2/0/1|
1)
Operating phase:
The boiler is in DHW mode.
[=/h/\|
[2/0/1|
1)
Operating phase:
Pump run-over time via the external hot water cylinder 130 seconds at
minimum speed. The LED "Burner operation" is off.
[0/a/\|
[2/0/2|
1)
Operating phase:
The switch optimization program is activated.
This program is activated if there has been a DHW request from an RC
regulator more frequently than once every 10 minutes. This means that the
boiler cannot be restarted until at least 10 minutes have elapsed since
initial burner start-up.
[0/a/\|
[3/0/5|
1)
Operating phase:
The boiler cannot start up temporarily after a DHW request has ended.
[0/c/\|
[2/8/3|
1)
Pre-operative phase:
The boiler prepares for a burner start-up whenever a heat demand or a DHW
request arises.
[0/e/\|
[2/6/5|
1)
Readiness for operation:
The boiler is in standby mode. There is a current heat demand, but too much
energy has been supplied.
[0/h/\|
[2/0/3|
1)
Readiness for operation:
The boiler is in standby mode. There is no current heat demand.
[0/l/\|
[2/8/4|
1)
Ignition phase:
The gas valve is activated.
[0/u/\|
[2/7/0|
1)
Start-up phase:
The boiler starts up after activation of the mains power supply or comple-
tion of a system reset. This code is displayed for a maximum of 4 minutes.
[0/y/\|
[2/0/4|
1)
Operating phase:
The flow temperature sensor has detected that the current flow
temperature is higher than the flow temperature setting on the BC10, or
that it is higher than the flow temperature calculated according to the
heating curve, or that it is higher than the flow temperature calculated for
the DHW mode.
Table 23 Display codes
Logamax plus GB162-L.B. 80 kW / 100 kW – 6720645916 (2014/10)
• Locking faults - the boiler resumes normal operation when the fault
has cleared.
• Blocking faults - the boiler is locked and will only restart after a
manual reset. The pump will operate continuously for frost
protection.
If a blinking code is displayed together with other codes, all displayed
codes will blink. A locking code will always show on the first screen of the
BC10.
Display codes
Display information
Other effects
No heating operation and no DHW.
The room temperature is too high.
The room temperature is not possibly
reached.
The room temperature is not possibly
reached.
13
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