{"product_id":"viessmann-7817324","title":"Viessmann 7817324 Ionization Electrode","description":"\u003cp\u003eThe \u003cstrong\u003eViessmann 7817324 Ionization Electrode\u003c\/strong\u003e is a critical flame sensing component engineered for precise \u003cstrong\u003eflame rectification\u003c\/strong\u003e in Vitodens series boilers. This authentic \u003cstrong\u003eOEM Viessmann replacement part\u003c\/strong\u003e includes the necessary high-temperature gasket to ensure a gas-tight seal during installation. Designed to withstand the intense thermal stresses within the combustion chamber, this \u003cstrong\u003eflame ionisation probe\u003c\/strong\u003e monitors the microamp signal to the control board, preventing nuisance lockouts and ensuring safe burner operation. It is specifically compatible with \u003cstrong\u003eVitodens 100-W WB1B\u003c\/strong\u003e and \u003cstrong\u003eVitodens 200-W WB2B\u003c\/strong\u003e condensing gas boilers. When servicing these units, replacing the \u003cstrong\u003e7817324 electrode\u003c\/strong\u003e is standard practice during annual maintenance to prevent carbon fouling or ceramic insulation failure. This specific sensor ensures the burner control unit accurately detects the presence of a flame, maintaining high-efficiency combustion and preventing hazardous unburned gas accumulation. Proper alignment and gap settings are vital for reliable \u003cstrong\u003eHVAC flame sensor\u003c\/strong\u003e performance in residential and commercial hydronic systems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM Compatibility:\u003c\/strong\u003e Precision-fit for \u003cstrong\u003eViessmann Vitodens 100\/200\u003c\/strong\u003e series residential boilers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Assembly:\u003c\/strong\u003e Includes the essential \u003cstrong\u003eionization electrode gasket\u003c\/strong\u003e for a simplified service call.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Durability:\u003c\/strong\u003e High-grade ceramic insulator prevents electrical leakage to the burner chassis.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReliable Signal Transfer:\u003c\/strong\u003e Optimized for consistent \u003cstrong\u003eflame rectification\u003c\/strong\u003e microamp readings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety Compliance:\u003c\/strong\u003e Meets strict manufacturer standards for burner flame monitoring and safety shutdowns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Service Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I diagnose a failing Viessmann 7817324 electrode?\u003c\/strong\u003e\u003cbr\u003e\nTechnicians should check for a 'Fault 02' or 'Fault F4' on the control display, which indicates no flame signal. Measure the \u003cstrong\u003eionization current\u003c\/strong\u003e with a multimeter; it typically should remain above 5 microamps during steady-state combustion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhen should this ionization probe be replaced?\u003c\/strong\u003e\u003cbr\u003e\nThe electrode should be inspected during every \u003cstrong\u003eViessmann boiler maintenance\u003c\/strong\u003e interval. If the metal probe shows significant pitting, oxidation, or if the ceramic is cracked, immediate replacement is required to avoid system downtime.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes this part fit the WB1A or WB1B models?\u003c\/strong\u003e\u003cbr\u003e\nThe 7817324 is the correct \u003cstrong\u003eViessmann spare part\u003c\/strong\u003e for WB1B 26\/35 and 13\/19 models, as well as several WB2B configurations. Always verify the serial number on the boiler cabinet before installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong style=\"color: red;\"\u003eThis item is not eligible for free shipping.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Viessmann","offers":[{"title":"Default Title","offer_id":43504626335922,"sku":"7817324","price":183.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_0c3f32e1-143d-40d6-871c-5c491ad7d66b.png?v=1776382075","url":"https:\/\/www.gsistore.com\/products\/viessmann-7817324","provider":"GSIstore","version":"1.0","type":"link"}