
© 2021 Staheli West
157
Faults
Fault 1330: Pressure Detected on High Fire Nozzle While in Low Fire
Burner State = Low Fire & High Fire Nozzle PSI > 10 PSI for 20 seconds
Causes
Troubleshooting
Fixes
• Fuel nozzle 1 & 2 sensor cables
are crossed.
• Swap cables to appropriate sensor.
• Faulty high fire nozzle pressure
sensor.
• Swap with low fire nozzle
pressure sensor.
• Replace nozzle pressure sensor.
Part #32982
• Faulty high fire fuel solenoid.
• Inspect high fire fuel solenoid
for leaks.
• Replace high fire fuel solenoid.
Fault 1331: Fuel Pump Pressure Low
Burner State = Purge & Fuel Pump PSI < 100psi for 10 seconds
Causes
Troubleshooting
Fixes
• No fuel.
• Inspect fuel tanks for empty
qualities.
• Fill fuel tanks.
• Faulty fuel pump pressure
sensor.
• Swap with high fire nozzle
pressure sensor.
• Replace fuel pump pressure
sensor. Part #32982
• Loose set screw on fuel pump
shaft coupler.
• No/Low fuel psi with fan
turning.
• Tighten set screw.
• Faulty fuel pump.
• Replace fuel pump. Part #10045
• Clogged fuel filter.
• Replace fuel filter. Part #10054
• Clogged fuel lines.
• Use compressed air to clear the lines.
Summary of Contents for DewPoint 331
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