Bosch HGS8655UC 800 Series 36 in Gas Cooktop Weak Flame Error Fix: Low or Weak Burner Flame

Error code Weak Flame on the Bosch HGS8655UC 800 Series 36 in Gas Cooktop means: Low or Weak Burner Flame. The burner produces a small, weak flame that does not adequately heat cookware. The burner ports may be clogged with food spillovers. Remove the burner cap and burner head, then clear each individual port using a pin or needle. Do not use toothpicks (they can break off inside). Check the gas pressure — low supply pressure causes weak flames on all burners. On LP installations, the orifices may not be properly sized for propane. Verify the air shutter adjustment is correct (blue flame with defined cones is ideal; yellow/orange flames indicate insufficient air).

The most successful fix is "Replace Burner Orifice and Verify Gas Pressure" (medium difficulty, ~60 minutes). Estimated DIY cost: $15-$25. 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 Orifice and Verify Gas Pressure") is rated medium difficulty and takes about 60 minutes. Tools needed: Adjustable wrench, Manometer, T20 Torx screwdriver.

DIY cost: $15-$25. Professional repair typically costs $130-$200. 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), Uneven Flame (Uneven or Yellow/Orange Flame), Won't Ignite (Burner Will Not Ignite).

Error code Weak 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.