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TECNIKA 28-35
USE AND INSTALLATION MANUAL
Chapter
7
page 46
Troubleshooting
Technical dept. - All rights reserved - Reproduction prohibited
4.
The flame appears to be
"dull" and smoke is
coming out of the
chimney
Poor quality of wood logs (in
most cases, humidity content
is higher than 20%)
It is advisable to replace fuel and use
wood logs with properties compliant
with requirements
Non optimal setting of
operating parameters
Adjust the operating parameters of
the boiler to obtain an efficient
combustion process
5.
Presence of unburnt fuel
in the combustion
chamber
Fuel combustion process
inefficient
Adjust air flow
6.
High combustion gas
temperature (if a
combustion gas
thermometer is installed)
Ash deposited on boiler heat
exchange surfaces forming a
heat resistant layer, which
decreases heat exchange
intensity
Carefully clean boiler heat exchange
surfaces
7.
Steam condenses on
boiler heat exchange
surfaces
Low temperature of the
water inlet flow
Adjust the set point temperature,
which controls the circulation pump
of the heating system. It is advisable
to set the thermostat to a minimum
value of 65
o
C.
8.
Combustion gases are
released into the boiler
room after a certain
period of operation
Insufficient chimney draught Check and clean the chimney if
needed. Heat the chimney to ensure
efficient operation.
Check the chimney parameters and if
required make changes (height, cross
section, insulation, etc.) -
this
operation must be carried out by an
expert.
Deposit of ash or obstructed
chimney
Remove ash deposits from the
chimney
Ash deposits or obstruction
of convective ducting of
boiler
Clean the convective ducting of the
boiler
The door and/or lid seal is
not working properly
The door seals must be replaced -
this operation must be carried out by
an technician
9.
Other faults not described
above
You need to call for an authorised
technician and have the boiler
serviced if necessary
