{"product_id":"warren-wd-no-28189-rev-a-circuit-board-card","title":"Warren WD. NO. 28189 Rev A Circuit Board Card","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\u003eWarren WD No. 28189 Rev A\u003c\/strong\u003e is a circuit board card designed for use in Warren HVAC systems. This board serves as a critical control component, managing operational functions within compatible Warren heating and air handling equipment.\u003c\/p\u003e\n\n\u003cp\u003eThis is a Rev A revision of the 28189 board, indicating it is an original or early-production design iteration. Warren circuit boards are known for their reliability in commercial and industrial HVAC applications, providing precise control over system operations such as sequencing, fan control, or heating stages depending on the specific unit configuration. This board is a direct replacement for failed or degraded units, helping restore full system functionality without the need for complete equipment replacement.\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 Warren (WD)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart\/Board Number:\u003c\/strong\u003e 28189\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRevision:\u003c\/strong\u003e Rev A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Circuit Board \/ Control Card\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Warren HVAC systems, including heaters and air handling units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Certified Pre-Owned, fully tested\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e System control and operational sequencing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWarren HVAC systems may use multiple board configurations depending on the model and vintage of the equipment. Please contact us with your unit's model and serial number to confirm compatibility before purchasing.\u003c\/p\u003e","brand":"Warren","offers":[{"title":"Default Title","offer_id":43673055428717,"sku":"13801","price":297.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_088708fe-3b2d-48c3-89ac-5f5f0893cd10.jpg?v=1763346774","url":"https:\/\/willardshvacsupply.com\/products\/warren-wd-no-28189-rev-a-circuit-board-card","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}