{"product_id":"carrier-pg9maa048060afka-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V-24V 40VA — PG9MAA048060AFKA","description":"\u003ch1\u003eOEM Carrier Control Transformer 120V–24V 40VA for Model PG9MAA048060AFKA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG9MAA048060AFKA\u003c\/strong\u003e gas furnace. The transformer converts 120V line voltage to 24V AC, powering the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and ignition board. When this transformer fails, the furnace goes completely dead: the thermostat loses power, no call for heat is processed, and the system will not attempt ignition. A failed transformer is often misdiagnosed as a board or thermostat fault, making correct identification critical before replacing more expensive components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120 VAC | Secondary voltage: 24 VAC | VA rating: 40VA | Frequency: 50\/60 Hz | Phase: Single | Replaces OEM part number HT01BC116 (superseded by HT680054)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA and voltage tolerances, protecting sensitive control boards from under- or over-voltage conditions. Generic units often lack built-in overcurrent protection and can fail prematurely under normal cycling loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off furnace power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label and photograph all low-voltage wiring before disconnecting. Verify 24V output at secondary terminals with a multimeter before reassembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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\u003ePG9MAA048060AFKA\u003c\/strong\u003e gas furnace. This part supersedes OEM part number HT01BC116. Always verify your unit's data plate voltage and VA specifications before ordering. Our parts specialists are available to confirm fitment — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642364383603,"sku":"CARRIE-PG9MAA048060AFKA-TRANSFORMER-HT01BC116","price":46.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642364416371,"sku":"CARRIE-PG9MAA048060AFKA-TRANSFORMER-HT01BC116-GEN","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_cf9d4c92-1446-4b18-83cc-be8defa28421.jpg?v=1775031516","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9maa048060afka-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}