{"product_id":"rheem-protech-47-100436-09-genuine-oem-replacement-furnace-control-board","title":"Rheem PROTECH 47-100436-09 – Genuine OEM Replacement Furnace Control Board","description":"\u003cp data-pm-slice=\"1 3 []\"\u003eThe \u003cstrong\u003eRheem PROTECH 47-100436-09\u003c\/strong\u003e is the central \"brain\" for high-performance Rheem and Ruud gas furnaces. This integrated furnace control (IFC) manages every stage of operation, from the initial safety checks and inducer motor start-up to gas valve ignition and blower speed regulation. By precisely timing each sequence of the heating cycle, this board ensures maximum fuel efficiency and provides constant monitoring of safety limit switches to protect your home and equipment.\u003c\/p\u003e\n\u003cp\u003eAs a \u003cstrong\u003eGenuine OEM PROTECH\u003c\/strong\u003e part, the 47-100436-09 is a direct-fit upgrade designed to handle the specific electrical loads and communication protocols of Rheem’s patented furnace designs. Unlike universal aftermarket boards that often require complex jumper configurations or wiring harnesses, this board features a \"plug-and-play\" terminal layout for an exact match. It includes advanced onboard diagnostics with LED fault code reporting, allowing for rapid troubleshooting and reduced system downtime during the heating season.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Function:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Logic Control:\u003c\/strong\u003e Manages the ignition sequence, inducer motor, and multi-speed blower timings within a single, ruggedized circuit assembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOnboard Diagnostics:\u003c\/strong\u003e Features a clear LED indicator that flashes specific fault codes, pinpointing issues like pressure switch failures or flame sense loss instantly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGenuine OEM Reliability:\u003c\/strong\u003e Engineered with high-grade relays and heat-resistant soldering to withstand the thermal stress of the furnace cabinet.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Integration:\u003c\/strong\u003e Constantly monitors the flame sensor and high-limit switches to provide immediate system shutdown in the event of a malfunction.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details and Key Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 47-100436-09 (Replaces 47-100436-01, 47-100436-89)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Rheem \/ Ruud (PROTECH)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePart Type:\u003c\/strong\u003e Integrated Furnace Control Board (IFC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage:\u003c\/strong\u003e 24V Control Circuit \/ 115V Line Voltage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Hot Surface Ignition (HSI) Support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBlower Speeds:\u003c\/strong\u003e Multi-speed blower motor support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e Standard plastic standoff footprint\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e🛠️ HVAC Depot Pro Tip: The Grounding Guarantee\u003c\/strong\u003e When installing the 47-100436-09, ensure your furnace cabinet is properly grounded and the burner assembly is free of oxidation. This board relies on a \"micro-amp\" signal for flame rectification; if your ground is weak or the flame sensor is dirty, the board will correctly—but frustratingly—shut the system down after 4 seconds of ignition. Always clean your flame sensor with a light abrasive pad when swapping this board to ensure a \"one-trip\" fix.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCross-Reference \u0026amp; Compatibility:\u003c\/strong\u003e The 47-100436-09 is a direct OEM replacement for the following part numbers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOEM Numbers:\u003c\/strong\u003e 47-100436-01, 47-100436-02, 47-100436-03, 47-100436-04, 47-100436-05\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtec\/White-Rodgers:\u003c\/strong\u003e 50M56U-751 (Cross-reference equivalent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eExtensive Model Compatibility List:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRheem Classic\/Prestige Series:\u003c\/strong\u003e RGPS, RGLS, RGRM, RGRA, RGLQ, RGRS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRuud Achiever Series:\u003c\/strong\u003e UGPS, UGLS, UGRM, UGRA, UGLQ, UGRS\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePackage Units:\u003c\/strong\u003e Used in various RGEA and RGEA14\/15 light commercial and residential models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rheem","offers":[{"title":"Default Title","offer_id":53191204700523,"sku":"662766720310","price":80.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/9683\/9531\/files\/47-100436-09.jpg?v=1778181589","url":"https:\/\/tophvacparts.com\/products\/rheem-protech-47-100436-09-genuine-oem-replacement-furnace-control-board","provider":"HVAC Parts and Equipment Depot Open To Homeowners and Contractors","version":"1.0","type":"link"}