Low Fuel Pressure
GE
Insufficient Gas Supply Pressure
Generator shuts down or fails to start with 'Low Fuel Pressure' or 'Fuel Pressure' alarm on LP/NG models.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Empty LP tank or low tank pressure, Undersized or restricted gas piping, Faulty gas regulator at generator, Defective fuel pressure sensor
How to Fix / Troubleshooting
Safety First: Turn the generator OFF and close the gas shutoff valve before disconnecting any fuel lines. If you smell gas strongly, evacuate the area and call your gas supplier.
- 1. Verify LP/NG supply: Check LP tank gauge for adequate level. For NG, confirm service is active and no upstream valves are closed.
- 2. Inspect gas shutoff valves: Ensure the manual gas shutoff at the GE generator and any intermediate valves are fully open.
- 3. Check for icing or regulator issues: In cold weather, inspect the LP regulator for icing. If icing is present, contact your gas supplier to correct regulator sizing or placement.
- 4. Inspect generator gas regulator: Examine the GE generator-mounted gas regulator for damage or blockage. Ensure vent is not obstructed by insects or debris.
- 5. Examine fuel pressure sensor wiring: Locate the fuel pressure transducer and verify the connector is secure and wiring is intact.
- 6. Clear alarm and test: After restoring proper gas supply, cycle the controller OFF then AUTO and run a manual test. If the alarm persists despite verified pressure, the regulator or sensor may require replacement by a technician.
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Repair Difficulty
Hard
4/5
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