{"product_id":"carrier-fa4anf048015afaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 120V→24V for FA4ANF048015AFAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01CN236 for Model FA4ANF048015AFAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier FA4ANF048015AFAA\u003c\/strong\u003e fan coil air handler. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, and all low-voltage switching circuits. When it fails, absolutely nothing in the control system responds — the thermostat goes dark, the system won't call for heating or cooling, and no error codes are generated because the board itself has no power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Factory OEM part number HT01CN236 | Meets original equipment electrical tolerances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM Carrier transformer is wound and insulated to exact VA and thermal specifications. Undersized or off-tolerance generic transformers can overheat, trip thermal cutoffs, or fail prematurely — especially when multiple accessories (humidifiers, zone controllers, UV lights) share the 24V circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify voltage is off with a multimeter before beginning. Tools needed: flathead and Phillips screwdriver, multimeter, wire stripper, wire nuts or push-in connectors. Label all low-voltage wires before disconnecting. Reinstallation is straightforward but verify VA load does not exceed transformer rating before powering up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eFA4ANF048015AFAA\u003c\/strong\u003e fan coil air handler. Always confirm primary voltage (120V) and VA rating on your unit's data plate before ordering. If you are unsure of fitment, our HVAC parts specialists are available to verify compatibility before you purchase — just reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909556261235,"sku":"CARRIE-FA4ANF048015AFAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909556294003,"sku":"CARRIE-FA4ANF048015AFAA-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_36c3e9a5-e2de-4703-ad16-bf83d2c95b8c.jpg?v=1782942024","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fa4anf048015afaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}