{"product_id":"icp-heil-tempstar-621-83-401a-control-circuit-board-621-404-8201-069-p258","title":"ICP Heil Tempstar 621-83-401A Control Circuit Board 621-404 8201-069  P258","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003eThis product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eICP Heil Tempstar 621-83-401A Control Circuit Board\u003c\/strong\u003e is a factory-authorized furnace control board designed for use in ICP, Heil, and Tempstar HVAC systems. This board manages critical furnace operations including ignition sequencing, blower motor control, and system diagnostics, ensuring reliable and efficient heating performance.\u003c\/p\u003e\n\n\u003cp\u003eThis control board is cross-referenced under part numbers \u003cstrong\u003e621-404\u003c\/strong\u003e, \u003cstrong\u003e8201-069\u003c\/strong\u003e, and \u003cstrong\u003eP258\u003c\/strong\u003e, making it a suitable replacement across multiple ICP-branded equipment lines. It features integrated LED diagnostic indicators for simplified troubleshooting and is engineered for direct drop-in replacement in compatible gas furnace models.\u003c\/p\u003e\n\n\u003cp\u003eThe board governs essential functions such as thermostat signal processing, flame sensing verification, blower delay timing, and safety limit monitoring. It is a critical component for restoring proper furnace operation when the original control board has failed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e ICP (International Comfort Products)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 621-83-401A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Reference Part Numbers:\u003c\/strong\u003e 621-404, 8201-069, P258\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Brands:\u003c\/strong\u003e ICP, Heil, Tempstar, Comfortmaker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard Type:\u003c\/strong\u003e Furnace Control \/ Integrated Ignition Control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e Typically rated at 24V control \/ 120V line\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas furnace control and sequencing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeatures:\u003c\/strong\u003e On-board LED diagnostics, blower delay control, safety limit integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIf you are unsure whether this control board is compatible with your specific furnace model, please contact us with your unit's model and serial number and we will be happy to assist with verification.\u003c\/p\u003e","brand":"Heil","offers":[{"title":"Default Title","offer_id":43672870682733,"sku":"12165","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_84332d8d-7868-494d-9843-91bcb2217d6e.jpg?v=1763341089","url":"https:\/\/willardshvacsupply.com\/products\/icp-heil-tempstar-621-83-401a-control-circuit-board-621-404-8201-069-p258","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}