Armstrong Air
Delayed Ignition
Furnace makes loud booming or delayed ignition noise when burners light.
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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
Dirty burner ports, Misaligned burners, Low gas pressure, Slow-opening gas valve
How to Fix / Troubleshooting
Safety: Delayed ignition can damage the heat exchanger. Turn off the furnace and have it inspected by a qualified technician.
Technician actions:
- Remove and clean Armstrong Air burners, ensuring all ports are clear.
- Verify proper burner alignment and secure mounting.
- Check gas pressure and adjust the gas valve regulator.
- Inspect and, if necessary, replace the gas valve if it is slow to open.
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Repair Difficulty
Professional Required
5/5
Required Part
Burner Assembly
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