{"product_id":"ao-smith-100111038-combined-controller-bth-120","title":"Ao Smith 100111038 Combined Controller BTH-120","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AO SMITH 100111038 is a combined controller designed as a direct replacement component for the BTH-120 Series water heater. This controller manages the integrated control functions of the water heating system, coordinating ignition, temperature regulation, and safety shutdown sequences. It is installed by licensed plumbers and HVAC technicians servicing commercial or high-demand residential hot water systems. The 100111038 is an OEM-style replacement part built to match the original control specifications of the BTH-120 Series platform.\u003c\/p\u003e\n\u003cp\u003eThis combined controller is intended for use in AO SMITH BTH-120 Series 100 water heaters. The BTH-120 Series is typically found in light commercial and high-demand residential applications where reliable, consistent hot water output is required. Technicians replacing a failed controller should verify the series designation and unit configuration before installation to ensure proper fitment.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement controller for AO SMITH BTH-120 Series 100 water heaters\u003c\/li\u003e\n  \u003cli\u003eManages integrated ignition, temperature, and safety control functions\u003c\/li\u003e\n  \u003cli\u003eOEM-style design matches original unit specifications\u003c\/li\u003e\n  \u003cli\u003eSupports standard service and diagnostic workflows for BTH-120 Series platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with the AO SMITH BTH-120 Series 100 water heater as stated by the manufacturer part designation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or HVAC technician familiar with commercial water heater controls. Before servicing, shut off the gas supply and disconnect electrical power to the unit following all applicable local codes and IFGC guidelines. Handle all control wiring connections carefully and verify all connections are secure before restoring power. Do not restore gas or power until the controller is fully seated and all connections are confirmed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: BTH-120 Series 100 Water Heater Combined Controller\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: 100111038\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TAILWIND","offers":[{"title":"Default Title","offer_id":51150363361586,"sku":"100111038","price":911.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305989768.jpg?v=1778610213","url":"https:\/\/voomisupply.com\/products\/ao-smith-100111038-combined-controller-bth-120","provider":"Voomi Supply","version":"1.0","type":"link"}