Bosch HGS8655UC 800 Series 36 in Gas Cooktop Uneven Flame Error Fix: Uneven or Yellow/Orange Flame

Error code Uneven Flame on the Bosch HGS8655UC 800 Series 36 in Gas Cooktop means: Uneven or Yellow/Orange Flame. The burner produces an uneven flame pattern, or the flame is yellow/orange instead of blue. An ideal gas flame is blue with distinct inner cones. Yellow or orange flames indicate incomplete combustion — usually caused by insufficient air supply or contaminated gas ports. Clean all burner ports thoroughly. Check the air shutter adjustment on the burner tube. Ensure the burner cap is properly seated and level. Yellow flame tips are normal on some burners but a predominantly yellow flame is not. Check for drafts that may affect flame pattern.

The most successful fix is "Replace Burner Air Shutter and Clean Gas Orifice" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated low severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Yes — the top-ranked community fix ("Replace Burner Air Shutter and Clean Gas Orifice") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Thin wire, Soft brush, Multimeter.

DIY cost: $10-$20. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

The Bosch HGS8655UC 800 Series 36 in Gas Cooktop has 5 other known error codes, including: Click No Ignite (Igniters Click But No Flame), Continuous Click (Igniters Click Continuously When Off), Gas Smell (Gas Odor Without Burner On), Weak Flame (Low or Weak Burner Flame), Won't Ignite (Burner Will Not Ignite).

Error code Uneven Flame also appears on 1 other Bosch model: HGS8045UC 800 Series 30 in 5-Burner Gas Cooktop. The fix may vary by model, so check each model's specific page for tailored repair steps.