{"product_id":"carrier-gb3aav036095aeja-transformer-h2usbz","title":"OEM Carrier 40VA Transformer 120V-24V for GB3AAV036095AEJA — HT01BC116","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model GB3AAV036095AEJA — Part# HT01BC116\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM replacement control transformer (part# \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier GB3AAV036095AEJA\u003c\/strong\u003e gas furnace. The transformer steps line voltage (120V) down to the 24V low-voltage signal required to power your thermostat, control board, gas valve, and all safety circuits. When it fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any call for heat or cooling, and nothing works. A failed transformer is often misdiagnosed as a bad thermostat or control board, making this an important first diagnostic step.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA output rating | 120V primary \/ 24V secondary | Factory-matched impedance and thermal protection | Direct OEM replacement for part# HT01BC116\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BC116 transformer is wound to exact factory VA ratings and includes internal thermal overload protection. Generic transformers often underrate their VA capacity, causing overheating and premature failure — especially when multiple 24V accessories are on the circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and disconnect the furnace before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire nuts or quick-connect terminals, and a multimeter to confirm 24V output after installation. Always verify primary and secondary voltages match your unit's wiring diagram.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. In-stock units ship same business day when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the Carrier \u003cstrong\u003eGB3AAV036095AEJA\u003c\/strong\u003e gas furnace. Always verify the existing transformer's primary\/secondary voltage ratings and VA rating on the data plate or wiring diagram before ordering to ensure a proper fit. If you have questions about fitment, our HVAC parts specialists will confirm compatibility before you order — same-day shipping available on all in-stock parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909394911603,"sku":"CARRIE-GB3AAV036095AEJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909394944371,"sku":"CARRIE-GB3AAV036095AEJA-TRANSFORMER-HT01BC116-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BC116_32337db1-155d-4030-83ce-731d8cb3110d.jpg?v=1782899593","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav036095aeja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}