37 Bentone
8.5 Pump pressure
Symptom Causes Remedies
The burner pump can not build up
pressure
No oil Check that there is oil and that it reaches
the pump
Oil viscosity too low Check that the oil reaching the pump has
the physical parameters that the pump
can handle. Change the oil or the pump‘s
oil parameters
Pump worn Replace the pump
Pump run using impure oil that has worn the
pump out prematurely
Replace pump and install self-cleaning
filter in the oil system
Blocked pump filter Check, clean pump filter