{"product_id":"carrier-pg8maa024045adja-transformer-h2usbz","title":"OEM Carrier 40VA Transformer HT01BC116 for PG8MAA024045ADJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model PG8MAA024045ADJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8MAA024045ADJA\u003c\/strong\u003e packaged gas furnace. The transformer steps down 120V line voltage to 24V to power the entire low-voltage control circuit — including the thermostat, gas valve, control board, and contactor coil. When it fails, \u003cem\u003enothing works\u003c\/em\u003e: the thermostat goes blank, the system is completely unresponsive, and you may measure zero volts at the R\/C terminals on the control board. Replacing the transformer is one of the most cost-effective repairs in HVAC service.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA output | 120V primary \/ 24V secondary | Industry-standard footprint | Factory-matched OEM part number HT01BC116\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM transformer, wound to exact VA and voltage tolerances. Generic units can run under-rated VA, causing nuisance tripping of the internal fuse or premature failure under full control-circuit load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdriver, multimeter, wire nuts or spade connectors. Always verify 24V output before closing the panel. Check for a shorted load (stuck contactor, grounded wiring) before installing — a shorted secondary will blow the new transformer immediately.\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 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered and tested for the \u003cstrong\u003eCarrier PG8MAA024045ADJA\u003c\/strong\u003e packaged gas furnace. Confirm your existing transformer's VA rating and primary\/secondary voltages on the data plate or wiring diagram inside the unit before ordering. Our HVAC parts specialists are standing by to verify fitment — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643088589171,"sku":"CARRIE-PG8MAA024045ADJA-TRANSFORMER-HT01BC116","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643088621939,"sku":"CARRIE-PG8MAA024045ADJA-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_01b031de-97db-49f4-9603-dee60699a30c.jpg?v=1775016550","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa024045adja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}