{"product_id":"carrier-ph13nr018000aaaa-transformer-h4oyjb","title":"OEM Carrier Transformer 120V\/24V 40VA for PH13NR018000AAAA","description":"\u003ch1\u003eOEM Carrier Transformer 120V to 24V 40VA for Model PH13NR018000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH13NR018000AAAA\u003c\/strong\u003e heat pump. The transformer steps down line voltage (120V) to the 24V low-voltage control circuit that powers your thermostat, contactor coil, and control board. When this part fails, the entire control system goes dead — the thermostat goes blank, the system won't respond to calls for heating or cooling, and no 24V devices operate at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120V | Secondary voltage: 24V | VA rating: 40VA | OEM part number: HT01AW229 | Factory-matched to Carrier PH13NR018000AAAA low-voltage control circuit requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine OEM Carrier transformer, wound and rated to exact factory specifications. Generic transformers often carry loose VA tolerances and lower-grade core materials, risking voltage sag under full control-circuit load and premature failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all wiring connections before removal. Verify 24V output with a multimeter before reassembling the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before the daily cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003ePH13NR018000AAAA\u003c\/strong\u003e heat pump. Always verify your unit's data plate voltage and VA requirements match before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions. \u003cstrong\u003eOrder now and your part ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641896161651,"sku":"CARRIE-PH13NR018000AAAA-TRANSFORMER-HT01AW229","price":33.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641896194419,"sku":"CARRIE-PH13NR018000AAAA-TRANSFORMER-HT01AW229-GEN","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_c62b6dd2-7d7a-49a0-b596-513a77690b5b.jpg?v=1775041002","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nr018000aaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}