{"product_id":"carrier-ph13nr030000afaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for PH13NR030000AFAA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model PH13NR030000AFAA\u003c\/h1\u003e\u003cp\u003eThis OEM transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH13NR030000AFAA\u003c\/strong\u003e heat pump system. The control-circuit transformer steps down line voltage (120V) to the 24V AC signal that powers the thermostat, contactor coils, and control board. When it fails, the entire low-voltage control circuit goes dead — the thermostat goes blank, the system won't respond to calls for heating or cooling, and fuses in the control circuit may blow repeatedly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA rated | Factory OEM part number HT01AW229 | Direct plug-in replacement\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 tolerances. Generic transformers often run underrated VA, causing thermal overload and premature failure under full control-circuit load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the breaker and confirm zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all wire connections before disconnecting the old transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cut-off ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier PH13NR030000AFAA\u003c\/strong\u003e heat pump. Always verify the transformer's VA rating and input\/output voltages against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641878106483,"sku":"CARRIE-PH13NR030000AFAA-TRANSFORMER-HT01AW229","price":35.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641878139251,"sku":"CARRIE-PH13NR030000AFAA-TRANSFORMER-HT01AW229-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_203b4873-b0bd-4823-90e0-48c0f4f9946e.jpg?v=1775041342","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nr030000afaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}