{"product_id":"carrier-pg9maa036080abka-transformer-h2usbz","title":"OEM Carrier 40VA Transformer 120V-24V for PG9MAA036080ABKA — HT01BC116","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer 120V\/24V for Model PG9MAA036080ABKA (HT01BC116 \/ HT680054)\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG9MAA036080ABKA\u003c\/strong\u003e gas furnace. The transformer is the heartbeat of your furnace's low-voltage control circuit — it steps down the 120V line voltage to the 24V AC signal that powers your thermostat, control board, gas valve, and all low-voltage accessories. When this part fails, nothing in the system responds: the thermostat goes blank, the furnace won't call for heat, and no error codes display because the board itself has lost power. A failed transformer is one of the most overlooked causes of a completely unresponsive furnace.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V AC primary | 24V AC secondary | 60Hz | Foot-mount configuration | Wire lead connections with pre-installed insulated female connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier replacement (updated part HT680054 superseding HT01BC116) delivered in a Carrier factory-authorized parts box. Generic transformers frequently suffer from poor VA tolerance and incorrect mounting geometry — one reviewer noted a generic unit would not mount correctly without modification. OEM ensures exact fitment, correct VA output, and full thermostat circuit protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify voltage is absent before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to confirm 24V output post-install). Photograph all wire connections before removal. The transformer mounts via a foot bracket and connects via wire leads — straightforward for a competent DIYer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. 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 Designed for the \u003cstrong\u003eCarrier PG9MAA036080ABKA\u003c\/strong\u003e gas furnace. Also cross-references with Bryant and Payne models sharing the same control circuit. OEM part HT01BC116 has been updated by Carrier to successor part number \u003cstrong\u003eHT680054\u003c\/strong\u003e — this is the correct current replacement. Verify your existing transformer's VA rating and primary\/secondary voltage on the data plate before ordering. Our fitment team is available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642370478451,"sku":"CARRIE-PG9MAA036080ABKA-TRANSFORMER-HT01BC116","price":70.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642370511219,"sku":"CARRIE-PG9MAA036080ABKA-TRANSFORMER-HT01BC116-GEN","price":62.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_b99c1823-99ad-4536-8d5a-8b6e6b876ed1.jpg?v=1775016278","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9maa036080abka-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}