14
Keeprite
Ignition Lockout After Failed Attempts
Furnace lights briefly then shuts off; LED shows code 14 (ignition lockout).
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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
Weak flame signal at flame sensor, Poor burner ground, Low gas pressure, Faulty control board flame sensing circuit
How to Fix / Troubleshooting
Safety: Turn off power and gas before cleaning or tightening connections.
Steps:
- Clean flame sensor: Remove and clean the flame sensor rod with fine abrasive pad. Reinstall ensuring it is properly positioned in the burner flame.
- Check ground connections: Verify that the burner assembly and control board ground wires are securely fastened to clean metal surfaces.
- Inspect burners: Remove burners if accessible and clean rust or debris that may distort the flame away from the sensor.
- Reset lockout: Restore power to clear the lockout and observe ignition. If lockout recurs, gas pressure and control board should be checked by a technician.
Do not repeatedly reset a furnace that continues to lock out; this indicates an unresolved safety issue.
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Repair Difficulty
Medium
3/5
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