Flue Probe - Biasi Advance Plus 25C User Manual And Installation Instructions

Flue probe intervention lock-
out
Flame detection error
No circulation, of faulty pump
or intervention primary tem-
perature limit.
3.9

Flue probe

The flue probe 19 and safety thermal fuse
20 indicated in Fig. 3.8 are a safety device.
The flue probe 19 intervenes when the flue
temperature exceeds 110°C placing the
boiler in safety block switching it off.
To reset normal boiler functioning, just press
the 14 (Fig. 3.6) key.
If flue probe 19 does not intervene and,
therefore does not send the boiler into se-
curity lockout, thermofusible 20 enters into
function as a further safety measure.
This component sends the boiler into se-
curity lockout when the flue temperature
reaches 167°C.
To restore the normal operation of the boil-
er, contact the Authorized Service Centre.
19
Fig. 3.8
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USEFUL ADVICE
10E
11E
14E
20