THERMOBILE AT 306 Manuel De L'utilisateur page 27

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Fault
The flame goes out
directly after ignition.
AT 300 series
Cause
6 The pump thermostat
has not reached the
right temperature yet.
7 Only for the AT 307:
The hot air thermostat is
defective.
8 Only for the AT 307:
The combustion air fan
is not functioning.
9 There is insufficient sup-
ply of combustion air
10 There is no proper flue
draught.
11 The flue draught is too
high or irregular.
12 The flue draught is too
low.
40.020.933 - rev. 04 - 2011
Solution
Replace the pump thermo-
stat.
Replace the hot air thermo-
stat.
Check the motor and replace
if necessary.
Only for the AT 306:
Clean the holes in the com-
bustion chamber wall, see
fig. 4 (B).
Only for the AT 307:
Clean the holes in the vapor-
iser, see fig. 6 (D).
Only for the AT 307:
Check the functioning of the
combustion air fan.
Check whether the flue is fit-
ted according to the descrip-
tion, see "flue".
Check the flue for leakage.
Clean the flue if necessary.
Position a flue stack valve,
see "flue".
Adjust the flue to the right
draught (see maintenance
table 5.1) with the counter-
weight on the valve(fig.9).
Check all connections in the
flue.
Reduce the number of
bends.
Heighten the flue.
Isolate the flue outside the
building.
Check the flue, see "flue".
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