{"product_id":"carrier-fa4anf024000agaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 120V\/24V for FA4ANF024000AGAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01CN236 for Model FA4ANF024000AGAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier FA4ANF024000AGAA\u003c\/strong\u003e fan coil air handler. The transformer steps down 120V line voltage to the 24V signal required by your thermostat and control board. When the transformer fails, the entire control circuit goes dark — your thermostat will show no power, the system won't respond to calls for heating or cooling, and no relays or contactors will energize. It is often the first component to check when nothing in the system responds.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120VAC | Output 24VAC | 40VA rating | OEM part number HT01CN236 | Factory-matched impedance and insulation class for Carrier fan coil applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM transformer wound to exact factory VA and voltage specifications. Generic transformers frequently use undersized cores that run hot, trip thermal cutoffs prematurely, and fail within a single season — costing far more in callbacks and repeat repairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and confirm with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Photograph existing wiring connections before removal. Reconnect primary (120V) and secondary (24V) leads to matching terminals and restore power to verify 24V output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our climate-controlled warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the Carrier \u003cstrong\u003eFA4ANF024000AGAA\u003c\/strong\u003e fan coil air handler. Always verify your unit's data plate confirms 120V primary input and 24V\/40VA secondary output before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions. \u003cem\u003eIn stock and ready to ship today.\u003c\/em\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909560914291,"sku":"CARRIE-FA4ANF024000AGAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909560947059,"sku":"CARRIE-FA4ANF024000AGAA-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_5fa3b462-d5c5-423f-9cb0-cb2b6437159d.jpg?v=1782940841","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fa4anf024000agaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}