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19
12 TROUBLE SHOOTING
Fig. 11 Switch diagram
04.05F.SC.00001
Fig. 12 Switch diagram with valve leakage control (optio-
nal)
04.05F.SC.00001
Indication mark at:
Possible cause:
end of green zone;
(no rotation of color disc)
- no tension
- no heat demand
end of yellow zone;
begin of red zone
- no flame (signal) of pilot burner
- no spark
red zone
failing or unstable flame of pilot burner
end of yellow zone;
begin of green zone
no flame (signal) of main burner
Green zone;
end of green zone
failing or unstable flame of main burner
12.1 Fault causes
In case of all disturbances the gas supply is interrupted
and the color disc stops rotating.
Check the position of the color disc for a indication of
the cause. The color disc is situated at the side of the
control box.
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Table 03 Trouble shooting
