{"product_id":"carrier-pf4mna061000aaaa-transformer-h3hwwy","title":"OEM Carrier 24V Control Transformer 40VA for PF4MNA061000AAAA","description":"\u003ch1\u003eOEM Carrier 24V Control Transformer (HT01CN241) for Model PF4MNA061000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PF4MNA061000AAAA\u003c\/strong\u003e fan coil air handler. The transformer converts 120V line voltage down to 24V AC, powering the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this component fails, the result is a completely unresponsive system: the thermostat goes blank, the air handler won't respond to any call for heating or cooling, and no low-voltage components receive power. Replacing it is one of the fastest ways to restore full system operation.\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 | OEM part number: HT01CN241 | Factory-matched electrical specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier transformer built to exact VA and voltage tolerances. Generic substitutes often run outside rated VA capacity, causing nuisance trips, overheating, or premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminals. Photograph all low-voltage wiring connections before disconnecting. Verify 24V output at secondary terminals before reassembly.\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 when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier PF4MNA061000AAAA\u003c\/strong\u003e fan coil air handler. Confirm your unit's data plate voltage rating and VA requirements match before ordering. Our parts specialists are available to verify fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643275759987,"sku":"CARRIE-PF4MNA061000AAAA-TRANSFORMER-HT01CN241","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643275792755,"sku":"CARRIE-PF4MNA061000AAAA-TRANSFORMER-HT01CN241-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01CN241_5276c015-889a-4483-ac24-10f0ae2a96e9.jpg?v=1775015754","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf4mna061000aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}