{"product_id":"carrier-pg9maa048100abka-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V–24V 40VA for PG9MAA048100ABKA","description":"\u003ch1\u003eOEM Carrier Furnace Control Transformer 120V–24V 40VA for Model PG9MAA048100ABKA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier PG9MAA048100ABKA\u003c\/strong\u003e gas furnace. The transformer steps down the 120V line voltage to the 24V AC signal that powers every low-voltage component in the system — thermostat, gas valve, inducer relay, and control board. When the transformer fails, the entire control circuit goes dead: the thermostat goes blank, the furnace will not respond to a call for heat, and no status codes are displayed on the board. Note: OEM part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e has been superseded by the current factory replacement \u003cstrong\u003eHT680054\u003c\/strong\u003e — a direct drop-in with identical specifications.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120V AC | Secondary voltage: 24V AC | VA rating: 40VA | Frequency: 60Hz | Mounting type: Foot mount | Connection type: Wire leads with insulated female connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory tolerances, delivering a stable 24V output under load. Generic units frequently produce low or fluctuating output voltage, causing nuisance lockouts, erratic thermostat behavior, and premature control board failure.\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 screwdrivers, needle-nose pliers, multimeter (verify 0V before touching wiring). Photograph all wiring connections before removal. Confirm 24V output at C and R terminals on the control board after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 for the Carrier \u003cstrong\u003ePG9MAA048100ABKA\u003c\/strong\u003e gas furnace. This OEM replacement also cross-references part numbers HT01BC116, HT01BC116B, HT01BC115, HT01BB126, HT01CT120, HT01BC120, and several additional legacy numbers — making it one of the most widely applicable Carrier\/Bryant\/Payne furnace transformers available. Verify your data plate voltage rating before ordering. Our fitment team is available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642341675379,"sku":"CARRIE-PG9MAA048100ABKA-TRANSFORMER-HT01BC116","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642341708147,"sku":"CARRIE-PG9MAA048100ABKA-TRANSFORMER-HT01BC116-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_ef725054-77b1-4c26-bdc3-f02519ce1997.jpg?v=1775031601","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9maa048100abka-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}