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What to Do If You Smell Gas Around Your Generator in St. Louis

Smelling gas near your generator? Learn essential safety steps to protect your home and family in St. Louis—don't wait, act quickly!

Reviewed by Content Team

Head of Content, D. Gorenko

Updated June, 5

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What to Do If You Smell Gas Around Your Generator in St. Louis

If you smell gas around your generator, immediately turn off the generator, close the gas supply valve, get everyone to a safe distance, and call your gas company or a qualified service technician. Do not switch lights on or off, use phones near the generator, or create anything that could spark.

 

Recognize a Gas Leak

 

Gas used for generators is usually natural gas or propane. Both have an added chemical that smells like rotten eggs so you can notice a leak quickly. If you smell this odor near your generator, you probably have a leak. Never ignore even a faint smell of gas.

 

Turn Off the Generator

 

A running generator can ignite leaked gas. To shut it down safely:

  • Find the On/Off switch or start/stop button on the generator’s control panel.
  • Move the switch to “Off” or press and hold the stop button until the engine stops.
  • Let the generator cool down before touching any metal parts.

 

Shut Off the Gas Supply Valve

 

Generators are fed by a gas line with a shutoff valve on it. This valve is usually a lever or wheel located near the gas meter or propane tank:

  • Turn the lever perpendicular to the gas pipe or rotate the wheel all the way clockwise.
  • This stops more gas from entering the generator line, reducing the leak.
  • Don’t try to repair the valve yourself if it feels stuck or leaks when you move it.

 

Evacuate and Ventilate

 

Gas can collect around and under the generator, creating a fire or explosion hazard:

  • Move at least 50 feet away from the generator and do not re-enter the area.
  • Open doors or windows in adjacent spaces to let fresh air flow and dilute gas.
  • Keep pets and bystanders away until the area is declared safe.

 

Avoid Sparks, Flames, and Electronics

 

Gas ignites easily from many everyday sources:

  • Do not switch lights on or off, plug in or unplug appliances, or use mobile phones near the generator.
  • Avoid smoking or using lighters, grills, or any open flame in the vicinity.
  • If you must use a phone to call for help, move well beyond the leak area first.

 

Contact Professionals Immediately

 

After you are at a safe distance:

  • Call your local gas utility or 911 if the leak seems large or dangerous.
  • Schedule an inspection and repair with a certified generator technician or licensed plumber.
  • For expert service in St. Louis or Nashville, choose a full-service residential and commercial provider to test lines and fittings.

 

Regular Maintenance to Prevent Leaks

 

To reduce the chance of future gas leaks:

  • Have a professional inspect gas pipes, valves, hoses, and connections at least once a year.
  • Replace any hose or fitting showing cracks, rust, dents, or loose clamps.
  • Test a licensed gas leak detector device monthly and replace sensors as recommended.
  • Keep the area around the generator clear of debris and ensure proper airflow.

 

Always treat any gas smell as an emergency. Following these steps—shutting down the unit, closing the valve, ventilating, avoiding sparks, and calling trained professionals—keeps you, your family, and your property safe. If in doubt, never hesitate to evacuate and seek expert help right away.

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