{"product_id":"ao-smith-100074348-control-board-t-kjr2-series","title":"Ao Smith 100074348 Control Board T-KJR2 Series","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AO SMITH 100074348 is a replacement control board designed for use in AO SMITH water heating systems. The control board manages the operational logic of the unit, coordinating ignition, temperature regulation, and safety functions. This part is a direct OEM-style replacement intended to restore proper system function when the original board fails. Licensed plumbers and HVAC technicians performing water heater service are the primary installers of this component.\u003c\/p\u003e\n\u003cp\u003eThis control board is specified for use with AO SMITH T-KJR2 series units in both indoor and outdoor configurations, covering liquid propane (LP) and natural gas (NG) fuel types. Applicable models include the T-KJR2-OS (LP), T-KJR2-IN (LP), T-KJR2-IN (NG), and T-KJR2-OS (NG). This makes it a cross-application replacement covering the core T-KJR2 product line regardless of installation location or fuel source.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement control board for T-KJR2 series units\u003c\/li\u003e\n  \u003cli\u003eCompatible with both LP and NG fuel configurations\u003c\/li\u003e\n  \u003cli\u003eFits indoor and outdoor model variants\u003c\/li\u003e\n  \u003cli\u003eRestores OEM control logic for ignition and temperature management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with the following AO SMITH models: T-KJR2-OS (LP), T-KJR2-IN (LP), T-KJR2-IN (NG), and T-KJR2-OS (NG).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or HVAC technician. Shut off power to the unit and close the gas supply valve before beginning any service work. Handle the control board carefully to avoid static discharge damage to onboard components. Verify all wiring connections are secure and match the original configuration before restoring power.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Control Board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Replacement Part\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Fuel Types\u003c\/strong\u003e: LP, NG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Configurations\u003c\/strong\u003e: Indoor, Outdoor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AO SMITH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 100074348\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TAILWIND","offers":[{"title":"Default Title","offer_id":51149696762162,"sku":"100074348","price":203.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305987339.jpg?v=1778599853","url":"https:\/\/voomisupply.com\/products\/ao-smith-100074348-control-board-t-kjr2-series","provider":"Voomi Supply","version":"1.0","type":"link"}