© 2022 Staheli West
172
Faults
Fault 250: Fuel Pump Pressure LOW
Indicates that the fuel pump pressure is below 135 psi during purge.
Causes
Troubleshooting
Fixes
• Fuel pump pressure
misadjusted.
• Check the fuel pump pressure
to see if it is below 250 psi
(Should be between 280-300 psi).
• Adjust fuel pump to 280-300
psi (See fuel pump page).
• Loose set screw(s) on shaft
coupler.
• Inspect the fuel pump coupler
set screws for tightness.
• Tighten set screw(s).
• Burner fuel filter clogged.
• Inspect burner fuel filter.
• Replace burner fuel filter
(Napa 4006).
• Fuel manifold clogged.
• Inspect fuel manifold.
• Clean out fuel manifold.
• Fuel lines clogged.
• Inspect fuel lines.
• Clean out fuel lines.
Fault 251: Propane Pressure HIGH
Indicates that the propane psi is over 35 psi. Damage can occur to burner regulator at 65 psi.
Causes
Troubleshooting
Fixes
• Faulty propane tank regulator
(10 psi).
• Inspect propane tank regulator.
• Replace propane tank regulator
(Part #10740).
• Overfilled propane tank.
• Inspect propane tank pressure
relief valve.
• Replace propane tank.
• Faulty propane psi sensor.
• Replace propane psi sensor.