31
Trouble Shooting
No fuel
Clogged fuel filter.
Remove and replace filter per FUEL FILTER
SECTION.
Fuel leak.
Repair as necessary.
Kinked or collapsed fuel line.
Remove and replace fuel line.
Low fuel pressure.
See “Low fuel pressure.”
Faulty burner oil pump.
Adjust pressure or replace.
Air leak in intake lines.
Tighten all fittings.
Clogged burner nozzle.
Remove and replace (do not clean).
Low fuel pressure
Clogged fuel filter.
See “No Fuel.”
Clogged fuel pump filter screen.
Remove pump cover and clean strainer using a
brush and clean fuel oil, diesel oil or kerosene.
Fuel oil too viscous.
Operate a lighter oil or in warmer area.
Air leaks in intake lines.
Tighten all fittings.
Kinked or collapsed fuel line.
Remove and replace.
Burner shaft coupling slipping.
Remove and replace.
Fuel nozzle worn.
Remove and replace with specified nozzle on
BURNER ASSEMBLY.
Faulty oil pump.
Remove and replace.
Pulsating pressure
Partially clogged fuel pump strainer
or filter.
Remove and replace strainer per FUEL PUMP
FILTER in OIL BURNER MAINTENANCE section.
Air leaking around fuel pump cover.
Check fuel pump cover screws for tightness and
damaged gasket.
Unit smokes
Improper fuel.
Refuel with FUEL specified on MACHINE
SPECIFICATIONS.
Air to burner insufficient.
See AIR BAND ADJUSTMENT in OIL BURNER
MAINTENANCE section.
Fuel nozzle interior loose.
Replace nozzle.
Water in fuel
Inspect fuel filter for water presence.
Gun out of alignment.
Bend oil pipe to center burner nozzle.
Burner motor thermal
protector kicked out
Low voltage.
Voltage must match those specified in the
BURNER section of MACHINE SPECIFICATIONS
section.
Fuel too viscous.
See “Low fuel pressure.”
Fuel pump defective.
Check that fuel pump turns freely.
Motor defective.
Call service technician or take motor to repair/
warranty station.
