{"product_id":"carrier-pf4mna049t00abaa-transformer-h3hwwy","title":"OEM Carrier Transformer 208\/230V–24V 40VA for PF4MNA049T00ABAA","description":"\u003ch1\u003eOEM Carrier Transformer 208\/230V to 24V 40VA for Model PF4MNA049T00ABAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier transformer (part #HT01CN241) factory-specified for the \u003cstrong\u003eCarrier PF4MNA049T00ABAA\u003c\/strong\u003e air handler. The transformer steps down line voltage from 208\/230V on the primary side to a safe 24V AC on the secondary side, powering the low-voltage control circuit that operates your thermostat, control board, relays, and zone valves. When this part fails, the entire control circuit goes dark — symptoms include a completely unresponsive thermostat, no heating or cooling response, and a system that appears totally dead despite line power being present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V Primary | 24V Secondary | 40VA Rating | Direct OEM drop-in replacement for Carrier part #HT01CN241\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM transformers are wound to exact VA and voltage tolerances required by the PF4MNA049T00ABAA control circuit. Undersized or off-tolerance generic transformers can sag under load, causing intermittent lockouts, nuisance tripping, or premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all wire connections before removal. Verify 24V output with a multimeter after installation before restoring full system power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship 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 Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier PF4MNA049T00ABAA\u003c\/strong\u003e air handler. Always verify the part number on your existing transformer's label and confirm 208\/230V primary and 24V 40VA secondary ratings match your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643281265011,"sku":"CARRIE-PF4MNA049T00ABAA-TRANSFORMER-HT01CN241","price":107.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643281297779,"sku":"CARRIE-PF4MNA049T00ABAA-TRANSFORMER-HT01CN241-GEN","price":94.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01CN241_f4d423bc-f7fb-4750-9dfd-a35ee628b490.jpg?v=1775041177","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf4mna049t00abaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}