{"product_id":"carrier-fa4anf030015afaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 120V-24V for FA4ANF030015AFAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01CN236 for Model FA4ANF030015AFAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier FA4ANF030015AFAA\u003c\/strong\u003e fan coil air handler. The transformer steps down 120V line voltage to the 24V signal used by the thermostat, control board, contactor coil, and all low-voltage accessories. When the transformer fails, the entire control circuit goes dark — the thermostat loses power, the system stops responding to calls for cooling or heating, and nothing operates. It is often the first component to suspect when the system is completely unresponsive and all fuses check good.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V | Secondary: 24V | OEM part number HT01CN236 | Factory-matched output tolerance for stable control circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM transformer wound to exact VA and voltage specifications. Generic transformers frequently run underrated VA, causing overheating, nuisance blown fuses, and premature failure — especially when multiple accessories (humidifiers, zoning boards, UV lights) share the 24V circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and confirm voltage is absent before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Photograph or label all wiring connections before disconnecting. Confirm primary and secondary terminals match your existing wiring color codes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 Carrier \u003cstrong\u003eFA4ANF030015AFAA\u003c\/strong\u003e fan coil air handler. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering to ensure a direct drop-in fit. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — add to cart or contact us today and get back up and running fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909557080435,"sku":"CARRIE-FA4ANF030015AFAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909557113203,"sku":"CARRIE-FA4ANF030015AFAA-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_55df70b4-5fbb-4373-a7f2-d5b89db27788.jpg?v=1782939459","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fa4anf030015afaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}