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BCU 560, BCU 565 · Edition 02.16
52
Fault signalling
Fault message (blinking)
DISPLAY
Description
POC valve open
1
Valve not closed
POC valve closed
8
Valve not open
Air monitor “no flow” state
0
Fault Air monitor “no flow” state check
Low air pressure
1
Fault Air monitor operating check
Low air pressure
2
,
3
,
4
,
5
,
6
,
7
,
8
Low air pressure during program step 2, 3, 4, 5,
6, 7 or 8
Air flow during pre-purge
P
Air flow failure during pre-purge
Waiting for connection
0
BCU waiting for connection to controller
Invalid address
1
Invalid or incorrect address set on bus module
Invalid configuration
2
The bus module has received an incorrect con-
figuration from the controller
Invalid network name
3
Invalid network name or no address allocated in
the network name
Controller in STOP position
4
Controller in STOP position
Burner 1 flame simulation
F 1
Burner 1 flame simulation during multi-flame control
No flame after safety time 1
F 2
No flame during safety time 1 during multi-flame
control
Flame failure during flame proving period 1
F 3
Flame failure during flame proving period 1 dur-
ing multi-flame control
Flame failure during burner 1 operation
F 4
Flame failure during burner 1 operation during
multi-flame control