Furnace emits a strong gas smell when attempting to start
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.
Possible Causes
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. Shut off gas at the main if safe to do so and call your gas utility and a licensed HVAC technician from a safe location.
Do not attempt DIY repairs on gas leaks or gas valves.