{"product_id":"carrier-pg8maa048135aaja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for PG8MAA048135AAJA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model PG8MAA048135AAJA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier PG8MAA048135AAJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, control board, and all low-voltage switching logic. When this part fails, the entire control circuit goes dark — symptoms include a completely blank thermostat display, no response to heat or cool calls, and no furnace activity whatsoever even with line voltage present at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120VAC | Secondary: 24VAC | Factory-matched OEM construction | Encapsulated windings for moisture resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BC116 is wound and tested to Carrier's exact VA rating and insulation class. Undersized or off-tolerance generic transformers can overheat under full 24V load, blow internal fuses, and damage the control board — making OEM the only reliable long-term choice.\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, wire stripper, needle-nose pliers, multimeter to confirm 24V output post-install. Photograph all wire connections before disconnecting the old transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 specifically for the \u003cstrong\u003eCarrier PG8MAA048135AAJA\u003c\/strong\u003e packaged gas furnace. Always verify secondary voltage (24V) and VA rating on your unit's data plate or existing transformer label before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642957713779,"sku":"CARRIE-PG8MAA048135AAJA-TRANSFORMER-HT01BC116","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642957746547,"sku":"CARRIE-PG8MAA048135AAJA-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_ee5c99b3-9785-4f2a-afb0-c06dd7c4ac28.jpg?v=1775041323","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa048135aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}