{"product_id":"nbk-21284-direct-spark-ignition-control-fenwal-35-705506-023","title":"NBK-21284 Direct Spark Ignition Control - Replaces Fenwal 35-705506-023","description":"\u003ch2\u003eNBK-21284 Direct Spark Ignition Control - Direct Replacement for Fenwal 35-705506-023\u003c\/h2\u003e\u003cp\u003eRestore safe and reliable burner ignition to your HVAC system with the NBK-21284 Direct Spark Ignition Control. Engineered as a direct OEM-equivalent replacement for Fenwal 35-705506-023, this ignition control module delivers dependable direct spark sequencing and flame sensing - getting your heating system back online quickly and safely without the cost of OEM sourcing.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e NBK-21284\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Direct Spark Ignition Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e HVAC Ignition Control Systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New Replacement Part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDirect Replacement For\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFenwal 35-705506-023\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eCommon Symptoms of a Failed Ignition Control\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBurner fails to ignite or goes into lockout\u003c\/li\u003e\n\u003cli\u003eNo spark at igniter\u003c\/li\u003e\n\u003cli\u003eSystem lights then shuts off immediately\u003c\/li\u003e\n\u003cli\u003eFlame not being sensed or recognized\u003c\/li\u003e\n\u003cli\u003eHeating system will not start\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose the NBK-21284?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Direct Replacement\u003c\/strong\u003e - OEM-equivalent fit for Fenwal 35-705506-023 direct spark ignition applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Spark Technology\u003c\/strong\u003e - Reliable spark sequencing and flame sensing for safe, consistent burner operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-Grade Reliability\u003c\/strong\u003e - Meets or exceeds original Fenwal specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e - Built for long service life in demanding HVAC ignition environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Field Replacement\u003c\/strong\u003e - Direct-fit installation with no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Ignition controls are safety-critical components. Verify part number compatibility and system specifications before ordering. Installation should be performed by a qualified HVAC technician. Electrical components are non-returnable once installed.\u003c\/p\u003e","brand":"NBK","offers":[{"title":"Default Title","offer_id":54044215181680,"sku":"SO-21284","price":280.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0595\/4463\/3444\/files\/21284-35-705506-023.webp?v=1784210004","url":"https:\/\/total-hearth.com\/products\/nbk-21284-direct-spark-ignition-control-fenwal-35-705506-023","provider":"Total Hearth","version":"1.0","type":"link"}