EA
Frigidaire
Weak Flame Signal / Intermittent Flame Sensing
Furnace shows EA; burners light but shut off after a few seconds
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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
Partially plugged burner orifice, Low gas pressure, Misaligned flame sensor, Corroded burner ground
How to Fix / Troubleshooting
Safety: Turn off power and gas. Gas adjustments must be done by a licensed technician.
- 1. Clean and reposition flame sensor: Remove the flame sensor, clean the rod, and ensure it is positioned directly in the burner flame path when reinstalled.
- 2. Check burner flame: After reassembly, restore power and gas, then observe the flame through the sight glass. Flames should be blue, stable, and evenly distributed across all burners.
- 3. Burner cleaning: If flames are uneven or lifting, have a technician remove and clean burner orifices and verify manifold gas pressure.
- 4. Grounding: Tighten burner rack screws and ensure a solid metal-to-metal ground path from burners to furnace chassis and control board.
- 5. Professional service: If EA persists, a technician should measure flame rectification current and adjust or replace components as needed.
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Repair Difficulty
Hard
4/5
Required Part
Burner Assembly
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