{"product_id":"carrier-fa4anf030000afaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 120V-24V for FA4ANF030000AFAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01CN236 for Model FA4ANF030000AFAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer (part number \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FA4ANF030000AFAA\u003c\/strong\u003e air handler. The transformer steps down line voltage from 120V to the 24V AC signal that powers your thermostat, control board, and all low-voltage control circuits. When this component fails, the entire control system goes dark — the thermostat loses power, nothing responds, and the system will not heat or cool regardless of other component condition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA rating | OEM part number HT01CN236 | Factory-matched construction for Carrier air handler applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact Carrier factory specifications, ensuring correct VA output and thermal protection tolerances. Generic transformers frequently under-deliver on VA rating, causing nuisance tripping and premature failure of downstream control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wiring before disconnecting. Verify 24V output with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before our same-day shipping cutoff ship from our warehouse the same business day.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-specified for the Carrier \u003cstrong\u003eFA4ANF030000AFAA\u003c\/strong\u003e air handler. Always confirm your existing transformer's VA rating and input\/output voltage from the unit data plate or wiring diagram before ordering. Our parts specialists are available to verify fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909558784371,"sku":"CARRIE-FA4ANF030000AFAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909558817139,"sku":"CARRIE-FA4ANF030000AFAA-TRANSFORMER-HT01CN236-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01CN236_6f6e0944-fe89-46af-9ac1-2ca3282bd565.jpg?v=1782939452","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fa4anf030000afaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}