{"product_id":"carrier-ph12na030000abaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V — PH12NA030000ABAA","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer HT01AW229 for Model PH12NA030000ABAA\u003c\/h1\u003e\u003cp\u003eThis is the factory-authorized OEM replacement control transformer for the \u003cstrong\u003eCarrier PH12NA030000ABAA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down line voltage (115\/208\/230V primary) to a safe 24V secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coils, and control board. When it fails, the system will appear completely unresponsive: no thermostat display, no contactor pull-in, and no staging response from any component on the control circuit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA power rating | 115\/208\/230 VAC primary | 24 VAC secondary | 50\/60 Hz | Foot-mount configuration | Dimensions: 4 in L × 2-5\/8 in W | OEM Part No. HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Factory-authorized OEM transformers are wound to exact VA tolerances and insulation ratings for the PH12NA030000ABAA platform. Undersized or off-tolerance generic units risk nuisance tripping, overheating, or premature control board failure due to voltage sag under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power and verify zero voltage before touching any terminals. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (verify 24V output after installation). Photograph existing wiring connections before disconnecting. Foot-mount hardware typically reuses existing chassis screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-matched for \u003cstrong\u003eCarrier model PH12NA030000ABAA\u003c\/strong\u003e packaged heat pump units. Also cross-references to Bryant and Payne equipment sharing the same 60VA 115\/208\/230V-24V transformer specification — verify your unit's data plate voltage and VA rating before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before every order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641961238899,"sku":"CARRIE-PH12NA030000ABAA-TRANSFORMER-HT01AW229","price":190.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641961271667,"sku":"CARRIE-PH12NA030000ABAA-TRANSFORMER-HT01AW229-GEN","price":167.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_6b372761-c769-44b9-8124-773004d8aa94.jpg?v=1775025991","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na030000abaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}