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BENTONE
8.3 Delayed ignition
Symptom Causes Remedies
Burner pulsates at start with hot
ue 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
parameters 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
parameters are within the limits
for which the burner is designed.
If not, change the oil.
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