{"product_id":"carrier-pg8jaa066135abja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V–24V 40VA for PG8JAA066135ABJA","description":"\u003ch1\u003eOEM Carrier Furnace Control Transformer 120V–24V 40VA for Model PG8JAA066135ABJA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part number HT01BC116, superseded by HT680054) is the factory-specified step-down transformer for the \u003cstrong\u003eCarrier PG8JAA066135ABJA\u003c\/strong\u003e gas furnace. It converts 120V line voltage to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and control board. When this transformer fails, the furnace loses all 24V control power: nothing responds, nothing lights up, and no fault codes appear. Before replacing boards or valves, always verify the transformer output with a multimeter.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary | 24V secondary | 40VA rating | Wire lead connections | Factory OEM tolerances | Direct OEM part — supersedes HT01BC116\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's control board. Undersized or off-spec generic transformers can cause nuisance lockouts, board brownouts, and premature contactor failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label or photograph existing wire connections before removal.\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 warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePG8JAA066135ABJA\u003c\/strong\u003e gas furnace. Also fits a wide range of Carrier, Bryant, and Payne furnace models requiring a 120V–24V 40VA step-down control transformer. Always verify your existing transformer's primary voltage, secondary voltage, and VA rating on the data plate before ordering. Have a fitment question? Our HVAC parts team confirms compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643105137011,"sku":"CARRIE-PG8JAA066135ABJA-TRANSFORMER-HT01BC116","price":47.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643105169779,"sku":"CARRIE-PG8JAA066135ABJA-TRANSFORMER-HT01BC116-GEN","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_742715e9-3aec-413f-bdc0-80ca74da0638.jpg?v=1775031576","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa066135abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}