{"product_id":"carrier-pg8uaa048091aaja-transformer-h2usbz","title":"OEM Carrier 40VA Transformer HT01BC116 for PG8UAA048091AAJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model PG8UAA048091AAJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8UAA048091AAJA\u003c\/strong\u003e packaged gas furnace. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, gas valve, and all low-voltage safety circuits. When this part fails, the entire control circuit goes dark — the thermostat loses power, the system won't respond to any call for heat, and there are no status LED codes because the board itself has no power to operate.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40 VA rating | 120V primary \/ 24V secondary | Factory-matched OEM replacement | Part Number HT01BC116 | Designed for Carrier packaged gas units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to exact factory VA and insulation class specifications. Generic alternatives often use lower-grade core laminations and can run hot or fail prematurely under sustained 24V load from multiple accessories (humidifiers, zone boards, etc.).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and verify zero voltage before touching any wiring. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade terminals, and a multimeter to confirm 24V output after installation. Always photograph existing wiring before disconnecting leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier model PG8UAA048091AAJA\u003c\/strong\u003e packaged gas furnace units. Verify your existing transformer's VA rating and primary\/secondary voltages on the data plate before ordering to ensure a correct fitment. Have a question about compatibility? Our HVAC parts specialists confirm fitment before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642757763443,"sku":"CARRIE-PG8UAA048091AAJA-TRANSFORMER-HT01BC116","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642757796211,"sku":"CARRIE-PG8UAA048091AAJA-TRANSFORMER-HT01BC116-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_d04e5d04-579d-4f4c-957c-4fc50bdf681d.jpg?v=1775016572","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8uaa048091aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}