38
Bentone
9.3
Delayed ignition
Symptom
Causes
Remedies
Burner pulsates at
start with hot flue gases
Excessively strong draught
Correct boiler draught
Excessive pressure drop across the brake
plate
Adjust the burner
Preheater temperature too low
Check preheater function
New oil type
Adjust the preheater‘s set operating
temperature
Ensure that the new oil‘s physical parame-
ters are within the limits for which the
burner is designed. If not, change the oil.
Nozzle partially blocked
Replace nozzle
Oil pressure too low
Check and adjust
Burner pulsates at start
Flue is blocked or damaged
Check and correct
The fan wheel is slipping on the shaft
Check and tighten
Pump coupling loose or worn
Replace
Preheater blocked
Check the ignition electrode setting,
(see technical data)
Delayed ignition
Check that the ignition electrodes
are not damaged
Excessively strong draught
Check high voltage cables
Check position of
nozzle assembly setting
Correct boiler draught
Excessive pressure drop across the brake
plate
Adjust the burner
Preheater temperature too low
Check preheater function
New oil type
Adjust the preheater‘s set operating
temperature
Ensure that the new oil‘s physical parame-
ters are within the limits for which the
burner is designed. If not, change the oil.
9.4
Noise in pump
Symptom
Causes
Remedies
The burner pump emits noise during start
Check the oil system in order to reduce
pressure drop
Insufficient negative pressure on the
suction side pump
Rebuild the oil system to form a solution
with a transport oil pump
The burner pump emits noise during
operation
Check that the oil used has the physical
parameters that the burner is rated for. If
not, change the oil.
Temperature of the oil from the tank is
too low, increase the temperature of oil
from tank
Clean the pump filter
