{"product_id":"carrier-pg8jaa048070adja-transformer-h2usbz","title":"OEM Carrier 40VA Transformer HT01BC116 for PG8JAA048070ADJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model PG8JAA048070ADJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8JAA048070ADJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V AC signal that powers the entire control circuit — including the thermostat, control board, gas valve, and zone controls. When the transformer fails, the system goes completely unresponsive: the thermostat goes dark, the furnace won't initiate a heat call, and no fault codes can be read. Replacing it with the correct OEM unit (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) restores the full 24V control circuit to factory specification.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary input | 24V secondary output | 40VA rating | Factory-matched winding tolerance for stable voltage under full control-circuit load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and tested to Carrier's exact VA and voltage-regulation standards. Generic units frequently sag under load, causing intermittent lockouts, nuisance board resets, and premature control-board failure — making the OEM unit the only recommended choice for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and confirm zero voltage with a multimeter before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wire connections before removing the old transformer; most units have color-coded leads that reinstall quickly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cut-off.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePG8JAA048070ADJA\u003c\/strong\u003e packaged gas furnace. Always verify your unit's data plate lists a 40VA, 120V\/24V transformer before ordering. Our team is available to confirm fitment — reach out before you buy if you have any questions, and we'll verify compatibility for you.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643202818419,"sku":"CARRIE-PG8JAA048070ADJA-TRANSFORMER-HT01BC116","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643202851187,"sku":"CARRIE-PG8JAA048070ADJA-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_00e470cf-116a-49d3-91dc-c412bb90fb07.jpg?v=1775016542","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa048070adja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}