Bosch HGS8655UC 800 Series 36 in Gas Cooktop Won't Ignite Error Fix: Burner Will Not Ignite

Error code Won't Ignite on the Bosch HGS8655UC 800 Series 36 in Gas Cooktop means: Burner Will Not Ignite. The gas burner clicks but does not produce a flame, or there is no clicking at all. Most common cause: moisture or food debris around the igniter electrode. Remove the burner cap and clean around the igniter with a dry cloth or brush. Ensure the burner cap is properly seated (misaligned caps can prevent ignition). If no clicking is heard, check the spark module and wiring. If all burners fail to ignite simultaneously, the spark module may have failed. If gas odor is present without ignition, ensure the gas supply is turned on and check the burner orifice for blockage.

The most successful fix is "Test and Replace Spark Module and Igniter Electrode" (hard difficulty, ~60 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Test and Replace Spark Module and Igniter Electrode") is rated hard difficulty and takes about 60 minutes. Tools needed: T20 Torx screwdriver, Multimeter, Needle-nose pliers.

DIY cost: $20-$40. Professional repair typically costs $150-$250. 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), Weak Flame (Low or Weak Burner Flame).

Error code Won't Ignite 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.