{"product_id":"carrier-pg9mab024060acsa-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 40VA 120V-24V for PG9MAB024060ACSA","description":"\u003ch1\u003eOEM Carrier Furnace Transformer 40VA 120V\/24V — Model PG9MAB024060ACSA (HT01BC116 \/ HT680054)\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM step-down transformer for the \u003cstrong\u003eCarrier PG9MAB024060ACSA\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, inducer relay, and control board. When this transformer fails, the result is total loss of low-voltage power: a blank thermostat display, no response to any call for heat, and a furnace that appears completely dead despite line voltage being present. A failed transformer can also be caused by a downstream short circuit in the 24V wiring, so always inspect low-voltage wiring before installing the replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary input | 24V secondary output | 50\/60 Hz single-phase | Foot-mount configuration | Wire lead connections with insulated female quick-connects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to factory-exact VA and voltage tolerances. Generic transformers often run outside ±5% tolerance, which can starve sensitive control boards of proper voltage and cause nuisance lockouts or premature 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 screwdriver, needle-nose pliers, multimeter. Before disconnecting wires, photograph or label all lead connections. After installation, verify 24V output between the R and C terminals on the control board before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In stock — ships same business day from our warehouse when ordered by 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Part Number Note:\u003c\/strong\u003e OEM part number HT01BC116 has been superseded by \u003cstrong\u003eHT680054\u003c\/strong\u003e — the current factory-authorized replacement shipped in a Carrier factory parts box. This listing fulfills orders originally placed under HT01BC116. Fits Carrier \u003cstrong\u003ePG9MAB024060ACSA\u003c\/strong\u003e and other Carrier, Bryant, and Payne furnace models using a 40VA 120V\/24V transformer. Verify your existing transformer's VA and voltage ratings on its label before ordering. Questions about fitment? Our HVAC parts team confirms compatibility before you buy — reach out anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642230264179,"sku":"CARRIE-PG9MAB024060ACSA-TRANSFORMER-HT01BC116","price":51.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642230296947,"sku":"CARRIE-PG9MAB024060ACSA-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_9fa49ea7-911e-4281-b595-d2bc5623a9f6.jpg?v=1775031726","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9mab024060acsa-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}