Frigidaire Improper Combustion / Incomplete Burning

Furnace ignites but produces yellow, flickering, or lifting flames

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

Dirty burners, Incorrect gas pressure, Insufficient combustion air, Blocked heat exchanger or flue

Critical safety: Yellow or unstable flames can produce dangerous carbon monoxide. Turn off the furnace and call a professional immediately.

1. Do not operate: Leave the furnace off until inspected.
2. Ventilation: Ventilate the area and ensure CO detectors are functioning.
3. Professional service: A licensed HVAC technician must clean burners, verify gas pressure, and inspect the heat exchanger and venting.

Professional Required 5/5

Burner Assembly

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