{"product_id":"carrier-pg8maa024045acja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V–24V 40VA for PG8MAA024045ACJA","description":"\u003ch1\u003eOEM Carrier Furnace Control Transformer 120V–24V 40VA for Model PG8MAA024045ACJA (HT01BC116 \/ HT680054)\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier PG8MAA024045ACJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, gas valve, control board, and every other low-voltage component in the system. When it fails—due to a shorted low-voltage circuit, a blown internal fuse, or simple age—\u003cstrong\u003enothing in the furnace will respond\u003c\/strong\u003e: no call for heat, no blower, no ignition sequence whatsoever. Replacing it is one of the most reliable and cost-effective repairs in HVAC service.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary input 120V AC | Secondary output 24V AC | 40VA rated | 60 Hz | Foot-mount bracket | Wire-lead connections | OEM part HT01BC116 (current superseding OEM part: HT680054)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA and voltage tolerances, ensuring the 24V output stays stable under full control-circuit load. Generic units frequently run outside spec, causing erratic thermostat behavior, nuisance lockouts, and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter (verify 0V before touching terminals), needle-nose pliers. Photograph all wire connections before removing the old transformer. Check and replace the in-line 3A fuse if present—a blown fuse indicates a low-voltage short that must be resolved before installing the new transformer.\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 cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePG8MAA024045ACJA\u003c\/strong\u003e gas furnace. Also fits a wide range of Carrier, Bryant, and Payne furnaces specifying HT01BC116 or its successor HT680054. Verify 120V primary input and 24V\/40VA output on your unit's data plate before ordering. Need fitment confirmation? Our HVAC parts team checks compatibility before you buy — just ask.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643089146227,"sku":"CARRIE-PG8MAA024045ACJA-TRANSFORMER-HT01BC116","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643089178995,"sku":"CARRIE-PG8MAA024045ACJA-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_05d64e92-acaa-47b2-86cd-bf949d9c7f07.jpg?v=1775031581","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa024045acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}