BlueStar Improper Combustion or Incorrect Gas Pressure

Oven produces soot, yellow flames, or leaves black residue on cookware.

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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

Incorrect orifice for gas type (NG vs LP), Low primary air due to blocked air shutters, Incorrect regulator pressure, Burner ports partially blocked

How to Fix / Troubleshooting

Safety first: Sooting indicates improper combustion and potential carbon monoxide production. Use the oven minimally until corrected.

Steps to try:

  • Check flame color: Flames should be mostly blue with small yellow tips. Large yellow flames indicate too little air or too much gas.
  • Clean burner ports: Remove burners and clean ports with a soft brush or wire. Do not enlarge the holes.
  • Verify conversion: Ensure the oven has been properly converted for your gas type (natural gas or LP) using the correct BlueStar orifices and regulator setting.
  • Professional adjustment: Gas pressure and air shutter adjustments should be performed by a qualified technician with proper instruments.
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Repair Difficulty

Professional Required 5/5

Required Part

Oven Burner Assembly
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