{"product_id":"carrier-pg8jaa036110abja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 40VA 120V-24V — PG8JAA036110ABJA","description":"\u003ch1\u003eOEM Carrier 40VA Furnace Control Transformer 120V–24V for Model PG8JAA036110ABJA\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM step-down control transformer for the \u003cstrong\u003eCarrier PG8JAA036110ABJA\u003c\/strong\u003e gas furnace. The transformer converts 120V line voltage down to 24V AC to power all low-voltage control circuit components — including the thermostat, gas valve, and control board. When the transformer fails, the entire control circuit goes dead: the thermostat goes blank, no call for heat is possible, and nothing in the system responds. A blown transformer is also often a symptom of a short elsewhere in the low-voltage wiring, so inspecting the full 24V circuit before replacing is strongly recommended.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | 60 Hz single-phase | Wire lead connection type | Compact foot-mount housing approx. 3\" L × 2-3\/16\" W × 2\" H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact Carrier factory tolerances, ensuring stable 24V output under load. Generic alternatives frequently deliver under-voltage at higher amperage draws, stressing the control board and shortening system life. OEM is the only recommended choice for 24V circuits powering gas valves and variable-speed boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and confirm zero voltage before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Before disconnecting, photograph all wire connections. Check for any short circuits in the 24V wiring (thermostat wires, gas valve leads) before energizing the new transformer — an unresolved short will blow the replacement immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Part Supersession:\u003c\/strong\u003e Fits \u003cstrong\u003eCarrier PG8JAA036110ABJA\u003c\/strong\u003e gas furnaces. OEM part number HT01BC116 has been factory-superseded by updated part number \u003cstrong\u003eHT680054\u003c\/strong\u003e — a direct drop-in replacement supplied in a Carrier factory-authorized parts box. Also replaces HT01BC115, HT01BB126, HT01CT120, HT01BC120, and multiple legacy part numbers. Verify your unit's data plate voltage specifications before ordering. Our team is available to confirm fitment — reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643209372019,"sku":"CARRIE-PG8JAA036110ABJA-TRANSFORMER-HT01BC116","price":51.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643209404787,"sku":"CARRIE-PG8JAA036110ABJA-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_71792e62-16d3-4851-afa3-60781d9bcc40.jpg?v=1775031760","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa036110abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}