{"product_id":"carrier-pg9mab060120aasa-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V-24V 40VA — PG9MAB060120AASA","description":"\u003ch1\u003eOEM Carrier Furnace Transformer 120V–24V 40VA for Model PG9MAB060120AASA\u003c\/h1\u003e\u003cp\u003eThis OEM control circuit transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG9MAB060120AASA\u003c\/strong\u003e gas furnace. It steps down the 120V line voltage to 24V AC, powering every low-voltage component in your system — the thermostat, control board, gas valve, and zone controls. When this transformer fails, the entire furnace goes silent: no fan, no ignition, no response from the thermostat. If you're measuring 0V between the R and C terminals on your control board, this transformer is the most likely culprit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA rating | 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vs Generic:\u003c\/strong\u003e This is a factory OEM part (superseded to HT680054), manufactured to exact Carrier tolerances. Generic transformers frequently carry incorrect VA ratings or mismatched mounting footprints, leading to difficult installation and shortened service life — as confirmed by field technicians who found generic units would not mount correctly without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the breaker and verify zero voltage before disconnecting wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Photograph all wire connections before removal. Verify 24V output at R-C terminals after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePG9MAB060120AASA\u003c\/strong\u003e gas furnaces. OEM part number HT01BC116, superseded by HT680054. Also cross-references HT01BC115, HT01BC120, HT01BB126, HT01CT120, and several other legacy Carrier\/Bryant\/Payne transformer part numbers. Always verify your unit's data plate voltage requirements before ordering. Our fitment team is available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642114527603,"sku":"CARRIE-PG9MAB060120AASA-TRANSFORMER-HT01BC116","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642114560371,"sku":"CARRIE-PG9MAB060120AASA-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_8d6a1f68-5a28-4153-b1dc-3e526a8de822.jpg?v=1775031540","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9mab060120aasa-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}