Furnace makes loud booming or banging noise at startup.
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
Safety: Delayed ignition can damage the heat exchanger and burners. Turn off the furnace and have it inspected.
Limited homeowner actions:
- Do not repeatedly cycle: Avoid repeatedly turning the furnace on and off if booming occurs.
- Visual check: With power and gas off, look for heavy rust or debris on burners.
A technician should remove and clean the burners, check gas pressure, and verify proper ignition timing on the Luxaire furnace.
Repair Difficulty
Required Part
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