{"product_id":"viessmann-7819628-ionisation-electrode","title":"Viessmann 7819628 Ionisation Electrode","description":"\u003cp\u003eThe \u003cstrong\u003eViessmann 7819628 Ionisation Electrode\u003c\/strong\u003e is a critical flame-sensing component designed for \u003cstrong\u003eVitodens 200 series\u003c\/strong\u003e wall-mounted gas-fired condensing boilers, specifically the \u003cstrong\u003eWB2 and WB2A series\u003c\/strong\u003e. Operating on the principle of flame rectification, this electrode passes a microamp signal through the flame to the burner control unit. If the \u003cstrong\u003eionization current\u003c\/strong\u003e is not detected, the system immediately terminates the gas supply to prevent hazardous unburnt gas accumulation. Engineered for high-temperature durability, this genuine OEM part ensures precise monitoring for \u003cstrong\u003eWB2A-24\/32\u003c\/strong\u003e and \u003cstrong\u003eWB2A-44\/60\u003c\/strong\u003e models, maintaining optimal combustion efficiency across both natural gas and liquid propane configurations.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Benefits for Technicians:\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise Flame Detection:\u003c\/strong\u003e High-sensitivity \u003cstrong\u003eflame sensing probes\u003c\/strong\u003e prevent nuisance lockouts and ensure reliable ignition cycles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect OEM Compatibility:\u003c\/strong\u003e Engineered for seamless integration with \u003cstrong\u003eViessmann Vitodens 200\u003c\/strong\u003e combustion chambers, eliminating fitment issues common with universal parts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial-Grade Build:\u003c\/strong\u003e Constructed with high-conductivity materials and a rugged ceramic sleeve to withstand the thermal stresses of condensing boiler operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Safety:\u003c\/strong\u003e Acts as a primary fail-safe by monitoring the \u003cstrong\u003eionization process\u003c\/strong\u003e to confirm burner stability before allowing continuous gas flow.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem Efficiency:\u003c\/strong\u003e Accurate feedback to the control board allows for better modulation, reducing carbon emissions and fuel consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions:\u003c\/strong\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the symptoms of a failing Viessmann 7819628 ionisation electrode?\u003c\/strong\u003e\u003cbr\u003e\nTechnicians typically encounter erratic burner operation, frequent \"no flame\" error codes (such as F4 or F5 on Vitodens units), or the boiler shutting down immediately after the ignition spark. Carbon buildup or a cracked ceramic insulator are common physical failure points.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan the 7819628 electrode be cleaned instead of replaced?\u003c\/strong\u003e\u003cbr\u003e\nWhile light oxidation or carbon deposits can often be removed during annual service using a fine abrasive cloth, any pitting of the metal or visible cracks in the ceramic sleeve requires an immediate \u003cstrong\u003ereplacement electrode\u003c\/strong\u003e to ensure system safety and signal integrity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this part compatible with all Vitodens 200 boilers?\u003c\/strong\u003e\u003cbr\u003e\nCompatibility is specific to the \u003cstrong\u003eWB2 and WB2A\u003c\/strong\u003e series. Technicians should verify the 16-digit boiler serial number to confirm this electrode matches the internal burner configuration of the specific residential unit being serviced.\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":42465154302130,"sku":"7819628","price":87.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/products\/Pic_ff26c2dd-d271-4d1d-9d61-b9faf9537ab6.jpg?v=1752267141","url":"https:\/\/www.gsistore.com\/products\/viessmann-7819628-ionisation-electrode","provider":"GSIstore","version":"1.0","type":"link"}