© 2022 Staheli West
182
Faults
Fault 307: Burner Smoking / Pulsing (Page 1 of 2)
Causes
Troubleshooting
Fixes
• 2015 machines check faults 217, 218, and 219.
• Low fire/High fire tuned
incorrectly.
• Tune the burner.
• Low and high fire nozzles
switched (Low Fire only).
• Remove burner gun assembly
and assure that the bigger 19.5
nozzle is on the tube that is
connected to the T fitting on the
end of the gun assembly.
• Swap fuel nozzles (ensure
they are installed in their proper
location).
• Dirty fuel filter.
• Causes fluctuating fuel psi.
• Replace fuel filter.
• Faulty fuel pump.
• Causes fluctuating fuel psi.
• Replace fuel pump.
• Incorrect fuel pressure setting.
• Set fuel pressure to 150 psi.
• Faulty louver actuator.
• Test in “Manual Mode” to see
if louver actuator moves Menu >
Operations >
Manual Mode.
• If a spare louver actuator is
available, swap it to see if it
works.
• Replace louver actuator.
• Faulty PLC causing louver
actuator malfunction.
• Reprogram or replace PLC.
• Dirty flue tubes.
• Inspect flue tubes from rear
exhaust/flue area.
• Clean the tubes :) (See Test 15).
• Faulty/Loose fuel nozzle.
• Remove gun assembly and
inspect nozzles for tightness
(remember to inspect internal
parts of nozzle).
• Can cause white smoke in post
purge.
• Repair/Replace/Tighten fuel
nozzles.
• Clogged nozzle screen.
• Remove and inspect nozzle
screen.
• Clean nozzle screen.
• Leaky gun assembly.
• Remove gun assembly and
inspect for leaks.
• Repair/Replace gun assembly.
• Restricted fuel flow through the
fuel solenoid valves.
• Inspect fuel path, check for
overtightened fittings.
• Remove restrictions.
• Clogged fuel path.
• Inspect fuel path from tanks
to fuel manifold to fuel filter for
restrictions. This will cause white
smoke.
• Remove clogs.