Controller displays “Low Fuel Pressure” or “Fuel Supply Fault”; engine may start then stall or fail to start.

Safety first: Turn generator OFF and disable automatic start. Gas work can be hazardous—if you smell gas strongly, evacuate and contact your gas utility.

Steps:

• Verify valves: Trace the gas line from the meter or LP tank to the generator. Ensure all manual shutoff valves are fully open.
• Check for kinks or damage: Inspect exposed gas piping and flexible connectors for kinks, crushing, or corrosion.
• Filter/regulator inspection: At the generator, locate the fuel filter and secondary regulator. Replace the filter if equipped and check for contamination. Do not disassemble regulators unless qualified.
• Gas pressure test: Have a licensed gas technician measure static and dynamic gas pressure at the generator inlet while cranking. Compare to Eaton’s specified minimum. If low, the upstream regulator or piping must be corrected.
• Clear alarm: After restoring proper pressure, clear the alarm and perform a test run under load.