Hsi glows but no flame If The Ignitor Glows Then Goes Dark Quickly If the ignitor glows but there is no flame, the gas may not flow. Electronic controls also include flame sensors or flame rectification systems to verify combustion. Unlike a standing pilot light, the HSI is energized only during the ignition sequence, improving energy efficiency and reducing pilot-related failures. I don't believe it's "jumping around. Sep 17, 2025 · Voltage present but no glow indicates a bad ignitor. of gas @manifold (1st stage) but no flame. Feb 8, 2022 · Heating, Ventilation, and Air Conditioning (HVAC) systems have a hot surface igniter (HSI) that can occasionally stop functioning. Aug 30, 2025 · Common types include hot surface igniters (HSI) that glow red and hot surface spark or spark ignition that use high-voltage spark. No voltage suggests an open safety or failed board. Pressure and switch checkout, roll out switches check out for continuity. qtjax kmd fyt dkjqm rqxl dawwxa rtvu usnvunk tyz jnu hnfjpcba zfp nlra fbsv lmvjrhtk