baltur BT 300 DSG 4T Manual User Instructions page 49

Burner does not start
Poor flame, with sparks
Poorly shaped flame with
smoke and soot
Defective flame (flickering or
protruding from combustion
head)
Corrosion inside the boiler
Soot at the mouth of the
chimney
• Thermostats (boiler or room) or pressure switches
are open
• Photocell short-circuit
• There is no voltage because of the an open contact
in the main switch or the meter overload-release,
or no voltage in the line
• Thermostat line not wired
• according to diagram or open thermostats
• Equipment internal fault
• Spraying pressure is too low
• Too much combustion air
• Nozzle inefficient because dirty or worn
• Water in the fuel
• Insufficient combustion air flow
• Nozzle inefficient because dirty or worn
• Combustion chamber unsuitably designed or too
small
• Nozzle capacity too low with respect to combustion
chamber volume
• Unsuitable or excessive refractory lining
• Boiler or chimney ducts blocked.
• Spraying pressure is low
• Excessive draught (only when there is an extractor
in the chimney)
• Nozzle inefficient because dirty or worn
• Water in the fuel
• Disc fouled
• Excess combustion air
• Air passage between disk and blast tube
• Boiler operating temperature too low (below the
dew point)
• High percentage of sulphur in the fuel
• Too low flue gas temperature (below 180 °C)
• Excessive cooling (below 180°C) of smoke before
exit outflow, for an outside chimney not adequately
heat insulated or cold air infiltration
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• Raise their settings, or wait until pressure
or temperature values naturally decrease
to close them
• Replace it
• Activate switches or wait for power to return
• Check connections and thermostats
• Replace it
• Reset at proper value
• Reduce combustion air flow
• Clean or replace
• Remove it from the tank using a suitable
pump (never use the burner pump for this
job). (Never use the burner pump for this job)
• Increase combustion air
• Clean or replace
• Modify or reduce the nozzle capacity with
respect to the combustion chamber or
replace the boiler
• Increase nozzle flow by replacing
• M o d i f y i t a c c o r d i n g t o t h e b o i l e r
manufacturer's instructions
• Arrange for cleaning
• Raise pressure to the prescribed value
• Adjust the suction fan speed by changing
the pulley diameter
• Clean or replace
• Remove it from the tank with a suitable pump
(never use the burner pump for this job)
• Clean it
• Reduce combustion air
• Correct the position of the combustion head
regulating device
• Increase operating temperature
• Change the type of fuel
• Increase nozzle flow by replacing
• Improve insulation and close any opening
letting cold air in
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