{"product_id":"carrier-pg8jaa048110acja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V-24V for PG8JAA048110ACJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model PG8JAA048110ACJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8JAA048110ACJA\u003c\/strong\u003e packaged gas heating and cooling unit. The transformer steps down 120V line voltage to 24V to power the entire low-voltage control circuit — including the thermostat, gas valve, contactor coil, and control board. When this part fails, the system goes completely unresponsive: the thermostat goes blank, the unit won't heat or cool, and there is typically no 24V output measurable at the secondary terminals.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V AC | Secondary: 24V AC | Factory-matched OEM replacement for Carrier packaged gas units | Clip or screw-mount bracket included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier use precision-wound coils with exact VA ratings and insulation class ratings matched to the original design. Generic units are often underrated in real-world VA output, leading to nuisance tripping of the internal thermal overload — especially when multiple 24V accessories are on the circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter (to confirm 0V before touching wiring and to verify 24V output after install). Photograph all wire connections before disconnecting. Total replacement time: approximately 20–30 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. 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 Engineered specifically for the Carrier \u003cstrong\u003ePG8JAA048110ACJA\u003c\/strong\u003e 4-ton packaged gas\/electric unit (110 MBH heating). Always verify the primary and secondary voltage ratings on the existing transformer's data label before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — reach out via chat or phone.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643180274035,"sku":"CARRIE-PG8JAA048110ACJA-TRANSFORMER-HT01BC116","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643180306803,"sku":"CARRIE-PG8JAA048110ACJA-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_7d8bb3fb-35ca-4a2d-861e-561f4b32ef0e.jpg?v=1775041269","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa048110acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}