{"product_id":"carrier-gb1aav036111aeja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120\/24V for GB1AAV036111AEJA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model GB1AAV036111AEJA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer (Part# \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier GB1AAV036111AEJA\u003c\/strong\u003e packaged gas\/electric system. The transformer steps down the 120V line voltage to the 24V AC signal required to power the control board, thermostat circuit, and all low-voltage control components. When this transformer fails, nothing in the system responds — the thermostat goes blank, the control board loses power, and the unit will not heat or cool under any call. A blown transformer is often caused by a short in the low-voltage wiring or a failed control board drawing excess current; always inspect downstream wiring before replacing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V AC | Secondary: 24V AC | OEM Part# HT01BC116 | Class 2 current-limiting design for built-in circuit protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory OEM transformer is wound to exact VA and voltage tolerances required by Carrier's control board. Generic transformers may under-deliver VA capacity, causing nuisance lockouts or premature failure under full control-circuit load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect before proceeding. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output and check for downstream shorts), wire nuts or spade connectors. Photograph all wiring before disconnecting terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eGB1AAV036111AEJA\u003c\/strong\u003e packaged unit. Verify primary voltage (120V) and VA rating (40VA) on your unit's wiring diagram or data plate before ordering. If your transformer shows burn marks or a tripped thermal fuse, inspect all 24V wiring for shorts prior to installation. Our parts specialists are available to confirm fitment — order with confidence and get back up and running today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909425287539,"sku":"CARRIE-GB1AAV036111AEJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909425320307,"sku":"CARRIE-GB1AAV036111AEJA-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_d2c5164f-2139-43bd-9ced-425b17d5735e.jpg?v=1782938717","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav036111aeja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}