Utica Gas Leak or Incomplete Ignition

Strong gas smell near the Utica boiler, especially during or after ignition attempts

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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

Loose gas union, Cracked gas valve body, Leaking burner manifold, Repeated failed ignition cycles

How to Fix / Troubleshooting

Safety first: If you smell gas strongly: Do not operate any electrical switches, do not use open flames, evacuate the area, and call your gas supplier or emergency services from a safe location.

  • Shut off gas: If it is safe and you know how, close the manual gas shutoff valve to the boiler.
  • Do not attempt repair: Gas leaks must be located and repaired by a licensed gas technician using leak detection equipment.
  • Ventilate: Open windows and doors to disperse gas if it is safe to do so.
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Repair Difficulty

Professional Required 5/5

Required Part

Gas Valve and Manifold
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