Kenmore Poor Gas Flow / Burner Contamination

Gas surface burners click but will not light, or the flame is weak or yellow.

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Possible Causes

Clogged burner ports, misaligned burner cap, low gas pressure, partially closed gas shutoff valve, wrong orifice for gas type (NG vs LP).

How to Fix / Troubleshooting

Safety first: Turn off burners and allow them to cool. Do not use sharp objects that can enlarge burner ports.

  • Check burner cap:
    • Ensure the burner cap is centered and seated flat on the burner base.
  • Clean burner ports:
    • Remove burner caps and heads.
    • Use a soft brush or wooden toothpick to clear debris from each port.
    • Soak burner heads in warm soapy water, then dry thoroughly.
  • Verify gas supply:
    • Confirm the gas shutoff valve to the range is fully open.
    • If other gas appliances are weak, contact your gas supplier.
  • Check gas type/orifices:
    • If the range was recently converted between natural gas and LP, verify the correct surface burner orifices are installed per the conversion kit instructions.
  • Test ignition:
    • Reassemble burners and test. If flames are still weak or yellow, a regulator or supply issue may exist; professional service is recommended.
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Repair Difficulty

Easy 2/5

Required Part

Surface Burner Head and Cap
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