{"product_id":"a-o-smith-100342430-pcb-kit-gas-tankless-ek864","title":"A.o. Smith 100342430 Pcb Kit Gas Tankless EK864","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe A.O. SMITH 100342430 is a printed circuit board (PCB) kit designed for gas-fired tankless water heaters. This control board kit serves as the electronic brain of the unit, managing ignition sequencing, temperature regulation, and safety fault monitoring. It is a factory-authorized replacement assembly intended for installation by licensed plumbers or water heater service technicians working on A.O. SMITH tankless gas water heater systems equipped with the EK864 control platform.\u003c\/p\u003e\u003cp\u003eThis PCB kit applies to gas-fired tankless water heater installations in residential or light commercial settings where the EK864 board is the specified control assembly. Tankless units are typically installed in closets, utility rooms, or on exterior walls, and demand board-level service when the unit logs persistent error codes, fails to ignite, or loses temperature control response. The 100342430 kit provides the replacement electronics needed to restore proper operation without replacing the full heater.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFactory-replacement PCB kit engineered for gas tankless water heater control systems\u003c\/li\u003e\n\u003cli\u003eSupports ignition sequencing, temperature management, and safety fault monitoring functions\u003c\/li\u003e\n\u003cli\u003eEK864 control platform designation ensures proper fit within the specified heater line\u003c\/li\u003e\n\u003cli\u003eKit format includes the board assembly as needed for a complete swap-out service\u003c\/li\u003e\n\u003cli\u003eDesigned to restore full electronic control function to the water heater\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement PCB kit for A.O. SMITH gas tankless water heaters utilizing the EK864 control board assembly.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed plumber or qualified water heater service technician. Before servicing, shut off the gas supply and disconnect electrical power to the unit at the breaker. Handle the PCB carefully to avoid static discharge damage to sensitive components. Refer to the unit service manual for board mounting, connector orientation, and startup verification procedures.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: PCB Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Type\u003c\/strong\u003e: Gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAppliance Type\u003c\/strong\u003e: Tankless Water Heater\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Platform\u003c\/strong\u003e: EK864\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: A.O. SMITH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 100342430\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TAILWIND","offers":[{"title":"Default Title","offer_id":51150560067890,"sku":"100342430","price":312.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305988908.jpg?v=1778614132","url":"https:\/\/voomisupply.com\/products\/a-o-smith-100342430-pcb-kit-gas-tankless-ek864","provider":"Voomi Supply","version":"1.0","type":"link"}