York
Gas Leak or Failed Ignition
Furnace emits a strong gas smell when trying to ignite.
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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
Leaking gas valve, Loose gas union at furnace, Repeated failed ignition attempts, Cracked burner manifold
How to Fix / Troubleshooting
Critical safety: If you smell strong gas, do not operate any electrical switches, do not use open flames, and evacuate the area. Call the gas utility or fire department from outside.
- Shut off gas: If safe, turn off the manual gas shutoff valve to the furnace (handle perpendicular to pipe).
- Ventilate: Open windows and doors to disperse gas.
- Do not relight: Do not attempt to restart the furnace until it has been inspected and repaired by a licensed technician.
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Repair Difficulty
Professional Required
5/5
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