{"product_id":"carrier-pg9maa060140aeka-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 40VA 120V-24V for PG9MAA060140AEKA","description":"\u003ch1\u003eOEM Carrier Furnace Transformer 40VA 120V-24V for Model PG9MAA060140AEKA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG9MAA060140AEKA\u003c\/strong\u003e gas furnace. Originally sold under part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e and updated by Carrier to the current superseding part number \u003cstrong\u003eHT680054\u003c\/strong\u003e, this transformer converts 120V line voltage down to 24V AC to power every low-voltage control circuit in the furnace — including the thermostat, control board, gas valve, and inducer relay. When this transformer fails, the entire control circuit goes dark: the thermostat displays nothing, the furnace will not attempt ignition, and no low-voltage components respond. A failed transformer is often misdiagnosed as a bad control board, making it the smart first part to test and replace.\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: 50\/60 Hz | Phase: Single | Mounting: Foot-mount | Dimensions: approx. 3\" L × 2-3\/16\" W × 2\" H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit ships in a Carrier factory-authorized box and is wound to exact factory VA and voltage tolerances. Generic transformers commonly run under-spec VA ratings, causing nuisance tripping, overheating, and premature control board damage — a risk not worth taking on a furnace this size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Switch off power at the breaker and confirm zero voltage before disconnecting any wires. Photograph all wiring before removal. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 24V output at C and R terminals on the control board after installation to confirm correct operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered by 5 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Directly fits Carrier model \u003cstrong\u003ePG9MAA060140AEKA\u003c\/strong\u003e gas furnace. Also replaces legacy Carrier\/Bryant\/Payne transformer part numbers HT01BC116, HT01BC115, HT01BB126, HT01CT120, HT01BC120, HT01AW115, HT01AA012, HT01AQ110, HT01CT210, HT01CT20006, 322666-701, 322953-302, and B1810113. Confirm primary voltage (120V) on your unit's data plate before ordering. Order now and our team will verify fitment before your part ships.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642256707955,"sku":"CARRIE-PG9MAA060140AEKA-TRANSFORMER-HT01BC116","price":51.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642256740723,"sku":"CARRIE-PG9MAA060140AEKA-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_a189974f-9d51-4f69-8417-64de650e0773.jpg?v=1775031721","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9maa060140aeka-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}