{"product_id":"carrier-pg8jaa048135aaja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 40VA 120V-24V — PG8JAA048135AAJA","description":"\u003ch1\u003eOEM Carrier Furnace Control Transformer 40VA 120V-24V for Model PG8JAA048135AAJA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8JAA048135AAJA\u003c\/strong\u003e gas furnace. It converts 120V line voltage down to 24V AC to power the low-voltage control circuit — including the thermostat, control board, gas valve, and inducer relay. When this transformer fails, absolutely nothing in the furnace will respond: no ignition attempt, no error codes, no thermostat communication. It is one of the first components to test whenever a furnace appears completely dead.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary | 24V secondary | 60 Hz single-phase | Foot-mount configuration | Wire lead connection type with insulated female quick-connect terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier transformer (superseded part HT680054, direct replacement for HT01BC116) shipped in factory-authorized packaging. OEM units are wound to exact VA and voltage tolerances. Generic transformers often run hot under load and can damage sensitive control boards over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and verify zero voltage before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Photograph all wire connections before disconnecting the old unit. Verify 24V output at the R and C terminals on the control board after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse when ordered by 5 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 PG8JAA048135AAJA\u003c\/strong\u003e. This transformer also supersedes legacy part numbers HT01BC116, HT01BC115, HT01BB126, HT01CT120, HT01BC120, HT01AW115, and several others — making it a broad-coverage OEM solution for Carrier, Bryant, and Payne furnaces sharing this control circuit specification. Confirm your unit's data plate shows a 120V primary \/ 24V secondary transformer requirement before ordering. Not sure? Our team verifies fitment before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643169821043,"sku":"CARRIE-PG8JAA048135AAJA-TRANSFORMER-HT01BC116","price":52.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643169853811,"sku":"CARRIE-PG8JAA048135AAJA-TRANSFORMER-HT01BC116-GEN","price":45.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_adb4ccdc-c1e5-4be9-8dfb-15f856b8f019.jpg?v=1775031765","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa048135aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}