F7
Frigidaire
Excessive Retries / Recycle Limit Exceeded
Furnace flashes F7; unit may lock out after several attempts
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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
Intermittent flame loss, Marginal flame sensor signal, Unstable gas supply, Faulty control board timing
How to Fix / Troubleshooting
Safety: Turn off power and gas if you suspect a gas leak or repeated ignition failures.
- 1. Clean flame sensor and burners: Perform a thorough cleaning of the flame sensor and burner assembly to ensure stable flame and good sensing.
- 2. Check venting and combustion air: Ensure intake and exhaust pipes are clear and properly terminated.
- 3. Limit retries: After cleaning, allow only a couple of restart attempts. If F7 returns, stop and call a professional.
- 4. Professional diagnosis: A technician should evaluate gas pressure, flame stability, and control board operation to correct the underlying cause.
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Repair Difficulty
Professional Required
5/5
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