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4.9.1 Operational status indication
LED
Red
Yellow
Green
The multicolor signal lamp (LED) in the lockout reset button is the key
indicating element for both visual diagnostics and interface diagnostics.
Visual diagnostics:
In normal operation, the different operating states are indicated in the form of color
codes according to the color code table given below.
During startup, status indication takes place according to the following table:
Color code table for multicolor signal lamp (LED)
Status
Color code
Color
Waiting time «tw», other waiting states
........................................
Off
Oil preheater on
........................................
Yellow
Ignition phase, ignition controlled
Flashing yellow
Operation, flame o.k.
.........................................
Green
Operation, flame not o.k. (when detector
current drops below the recommended
level for reliable operation)
Flashing green
Extraneous light on burner startup
Green-red
Undervoltage
Yellow-red
Fault, alarm
.........................................
Red
Error code output (refer to «Error code
table»)
Flashing red
Interface diagnostics
Red flicker light
......
Steady on
Red
Off
Yellow
Green
Operational status
indication
Legend