{"product_id":"carrier-pg8jaa036070aaja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 40VA 120V-24V for PG8JAA036070AAJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer 120V–24V for Model PG8JAA036070AAJA (Replaces HT01BC116)\u003c\/h1\u003e\u003cp\u003eThis OEM 40VA step-down transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8JAA036070AAJA\u003c\/strong\u003e gas furnace. It converts 120V line voltage to the 24V signal required to power the control board, thermostat circuit, and all low-voltage system controls. When this transformer fails, your thermostat goes dark, your furnace won't respond to a call for heat, and the entire control circuit goes dead — symptoms often mistaken for a failed thermostat or control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA | Primary: 120VAC | Secondary: 24VAC | 50\/60 Hz | Single-phase | Compact chassis-mount design | OEM Part: HT01BC116 (superseded by HT680054)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM-specification transformer built to factory tolerance. Generic transformers often run under-rated VA capacities, causing nuisance tripping, premature failure, and potential control board damage under peak load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Turn off all power to the furnace at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label all wiring leads before disconnecting the old transformer. Verify 24VAC output with a multimeter after installation before restoring full power.\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 3PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePG8JAA036070AAJA\u003c\/strong\u003e gas furnace. This part directly replaces OEM part number HT01BC116 and its current OEM successor HT680054. Also cross-references HT01BC115, HT01BB126, HT01CT120, HT01BC120, HT01AW115, HT01AA012, HT01AQ110, HT01CT210, and HT01CT20006. Always confirm your existing transformer's voltage and VA rating on the unit data plate before ordering. Not sure it fits? Contact our parts team — we verify fitment before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643213664627,"sku":"CARRIE-PG8JAA036070AAJA-TRANSFORMER-HT01BC116","price":51.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643213697395,"sku":"CARRIE-PG8JAA036070AAJA-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_8e778717-8306-4307-bbd2-e5ae170bf065.jpg?v=1775031684","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa036070aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}