{"product_id":"carrier-ga2aad024071acja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V–24V for GA2AAD024071ACJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V–24V for Model GA2AAD024071ACJA\u003c\/h1\u003e\u003cp\u003eThis OEM control circuit transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier GA2AAD024071ACJA\u003c\/strong\u003e system. The transformer steps line voltage down from 120V to the 24V AC signal that powers your thermostat, control board, and all low-voltage control wiring. When this component fails, the entire control circuit goes dead — you'll see a blank thermostat display, no response to calls for heating or cooling, and zero activity at the air handler or furnace board. It's often the first component to inspect when a system appears completely unresponsive.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | OEM part number HT01BC116 | Factory-matched output voltage and VA capacity for stable, reliable control circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by Carrier engineering. Undersized or off-tolerance generic units can cause nuisance lockouts, erratic thermostat behavior, and premature control board failure — OEM is always the safer choice.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label or photograph all low-voltage wiring connections before removing the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the Carrier \u003cstrong\u003eGA2AAD024071ACJA\u003c\/strong\u003e. Always verify your existing transformer's VA rating and primary\/secondary voltages against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — just reach out before you buy. Order today and your part ships the same business day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909444817267,"sku":"CARRIE-GA2AAD024071ACJA-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909444850035,"sku":"CARRIE-GA2AAD024071ACJA-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_7a8490dd-604d-47cb-8465-3650d0eaa7f6.jpg?v=1782941931","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ga2aad024071acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}