Initial start−up, inspection and maintenance
16
Burner control unit
(cont.)
Burner control unit LMO 14.113A2 (cont.)
Operating controls
The reset button "ET" is
the central control for
resetting the system
and for activating and
deactivating the
diagnostic system.
The multi−coloured
signal lamp "LED" is
the central display
element for the visual
diagnosis as well as the
interface diagnosis.
Both elements ("ET" and "LED") are
located under the clear cover of the
reset button.
Visual diagnosis
Operational display or fault cause
diagnosis
During normal operation the various
conditions are indicated by colour
code acc. to the following colour
code table.
Colour code table
Condition
Colour code
Colour
Oil pre−heater active, oil pre−heat
time t0
\
\
\
\
\
\
\
\
\
\
\
\
\
yellow
Ignition phase, ignition activated
\
0
\
0
\
0
\
0
\
0
\
0
\
yellow off
Operation, flame OK
J
J
J
J
J
J
J
J
J
J
J
J
J
J
green
Operation, poor flame
J
0
J
0
J
0
J
0
J
0
J
0
J
green off
Undervoltage
\
Y
\
Y
\
Y
\
Y
\
Y
\
Y
\
yellow red
Fault, alarm
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
red
Fault code output
Y
0
Y
0
Y
0
Y
0
Y
0
Y
0
Y
red off
Extraneous light before burner start
J
Y
J
Y
J
Y
J
Y
J
Y
J
Y
J
Y
green red
Interface diagnosis
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
red flickering light
Legend:
0
off
\
yellow
J
green
Y
red
5692452 GB
red
yellow
green
