{"product_id":"carrier-pg8maa048070abja-transformer-h2usbz","title":"OEM Carrier Control Transformer 40VA 120V-24V for PG8MAA048070ABJA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model PG8MAA048070ABJA (Replaces HT01BC116)\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8MAA048070ABJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V signal voltage required to power the control board, thermostat circuit, and all low-voltage safety controls. When the transformer fails, the furnace goes completely unresponsive — the thermostat shows no connection, the control board has no power, and there is zero call-for-heat activity. Replacing this part is often the first diagnostic step when the furnace is completely dead with no error codes displayed.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary | 24V secondary | 50\/60 Hz single-phase | Compact chassis-mount design | Direct OEM replacement for part number HT01BC116 (superseded by HT680054)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact Carrier factory tolerances, ensuring stable 24V output under full control-circuit load. Off-brand units often under-deliver VA capacity, causing nuisance lockouts and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to confirm 24V output after install). Label or photograph all low-voltage wiring before disconnecting. Most technicians complete this repair in under 30 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the \u003cstrong\u003eCarrier PG8MAA048070ABJA\u003c\/strong\u003e gas furnace. Also compatible with a broad range of Carrier, Bryant, and Payne furnace models requiring a 40VA 120V-24V step-down transformer. Always verify your unit's data plate voltage and VA requirements before ordering. Our fitment team is available to confirm compatibility — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643012436339,"sku":"CARRIE-PG8MAA048070ABJA-TRANSFORMER-HT01BC116","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643012469107,"sku":"CARRIE-PG8MAA048070ABJA-TRANSFORMER-HT01BC116-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_b8a0fbdc-1c32-4f90-8c4c-9ab044dac8a1.jpg?v=1775025372","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa048070abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}