{"product_id":"carrier-pf1mna071000acaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 208\/230V→24V for PF1MNA071000ACAA","description":"\u003ch1\u003eOEM Carrier 40VA Transformer HT01CN236 for Model PF1MNA071000ACAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part number \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier PF1MNA071000ACAA\u003c\/strong\u003e fan coil air handler. Its job is to step down the 208\/230V line voltage to a safe 24V AC signal that powers the thermostat, control board, relays, and all low-voltage components throughout the system. When this transformer fails, the entire control circuit goes dark — the thermostat loses power, the system stops responding to calls for heating or cooling, and the unit will not operate at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA output capacity | 208\/230V primary input | 24V secondary output | 60Hz | Direct OEM replacement for Carrier part number HT01CN236\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. Aftermarket units can run under-rated VA, causing voltage sag under load, nuisance lockouts, and 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 (verify 24V output after install). Label all low-voltage wires before disconnecting. Confirm primary voltage matches your supply before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. 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 as a direct OEM replacement for the \u003cstrong\u003eCarrier PF1MNA071000ACAA\u003c\/strong\u003e fan coil air handler. Always verify your existing transformer's VA rating and primary voltage from the unit data plate before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — order with confidence and get back up and running today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643346571635,"sku":"CARRIE-PF1MNA071000ACAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643346604403,"sku":"CARRIE-PF1MNA071000ACAA-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_8789bc14-bcca-41b0-8896-d6656992114f.jpg?v=1782942225","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mna071000acaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}