{"product_id":"carrier-pg8daa048115abja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V–24V 40VA — HT01BC116","description":"\u003ch1\u003eOEM Carrier Furnace Control Transformer 120V–24V 40VA for Model PG8DAA048115ABJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8DAA048115ABJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to 24V AC to power the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and control board. When this part fails, nothing in the control circuit responds: the thermostat goes dead, the furnace won't call for heat, and you may measure zero voltage at the 24V secondary terminals. It is a silent but total system failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input (Primary) 120V AC | Output (Secondary) 24V AC | 40VA power rating | 60Hz | Foot-mount configuration | Wire lead connections | Integrated secondary fuse protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by Carrier's control boards. Undersized or off-tolerance generic units can cause erratic lockouts, nuisance blown fuses, and premature control board failure — particularly on multi-stage furnaces like the PG8DAA048115ABJA.\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 disconnecting. Tools needed: flathead and Phillips screwdriver, needle-nose pliers, multimeter. Photograph all wire connections before removal. The new transformer mounts in the same footprint as the original.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty. In stock — ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Cross-Reference:\u003c\/strong\u003e Fits \u003cstrong\u003eCarrier PG8DAA048115ABJA\u003c\/strong\u003e gas furnaces. OEM part number HT01BC116 has been updated to superseding part number \u003cstrong\u003eHT680054\u003c\/strong\u003e — both are the same 40VA 120V–24V transformer. This listing also crosses to: HT01BC116B, HT01BC115, HT01BB126, HT01CT120, HT01BC120, HT01AW115, and HT01AA012. Always verify input voltage, output voltage, and VA rating on your unit's data plate before ordering. Our team is happy to confirm fitment — just reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643231555955,"sku":"CARRIE-PG8DAA048115ABJA-TRANSFORMER-HT01BC116","price":70.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643231588723,"sku":"CARRIE-PG8DAA048115ABJA-TRANSFORMER-HT01BC116-GEN","price":61.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_b28f0796-2408-4036-8a66-f0052928d495.jpg?v=1775031620","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8daa048115abja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}