Riello Gulliver BS2D TL Installation, Use And Maintenance Instructions page 67

FAULTS
Burner tends to pull the
flame when switching
st nd
from 1 to 2 stage.
6.2 OPERATING IRREGULARITIES
FAULTS
The burner locks out
during operation.
Burner shut down.
3115
POSSIBLE CAUSES
Output ratio between 1
greater than 1:2.
st
High air excess in 1 stage.
POSSIBLE CAUSES
Earth probe.
The flame disappears 4 times.
Air pressure switch opening.
Gas pressure switch opening.
Restore correct maximum ratio of 1:2,
st nd
and 2 stage
making sure 1
than the operating range's
Restore the correct air excess value (
min. = 1.3) see section "4.4 combustion
control".
Check the right position and if necessary
set it according to the instructions of this
manual.
Clean or replace the ionization probe.
Check the gas pressure in the network
and/or adjust the solenoid valve accord-
ing to the instructions of this manual.
The air pressure is too low, (the head is
bad adjusted).
The air pressure switch is faulty,
change it.
Check the pressure in the network and/or
adjust the solenoid valve according to the
instructions of this manual.
15 GB
SOLUTION
st
stage output is no less
minimum.
SOLUTION
