{"product_id":"carrier-ph13nr03000gafaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V–24V for PH13NR03000G","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V–24V for Model PH13NR03000GAFAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-specified control transformer (Part# HT01AW229) for the \u003cstrong\u003eCarrier PH13NR03000GAFAA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down the 115\/208\/230V line voltage to a safe 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, reversing valve solenoid, and all safety circuits. When this transformer fails, the entire unit goes dark: no thermostat response, no contactor pull-in, and no operation in either heating or cooling mode. A blown fuse on the secondary winding is the most common symptom of a failed or overloaded transformer.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA power rating | Multi-tap primary: 115V \/ 208V \/ 230V AC | Secondary: 24V AC | 50\/60 Hz | Foot-mount configuration | OEM Part# HT01AW229 (supersedes HT01AW229A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA and voltage tolerances, ensuring the secondary holds steady 24V under full control-circuit load — critical for proper contactor and reversing valve operation. Off-brand units often sag under load, causing erratic lockouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: multimeter, flathead and Phillips screwdrivers, needle-nose pliers, wire stripper. Always confirm which primary tap (115V, 208V, or 230V) matches your supply voltage before wiring. Photograph or label all low-voltage wiring before disconnection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock unit ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for \u003cstrong\u003eCarrier PH13NR03000GAFAA\u003c\/strong\u003e packaged heat pump systems. Verify your existing transformer's VA rating and primary voltage tap configuration against your unit's data plate before ordering. Cross-references: HT01AW229A. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641875681651,"sku":"CARRIE-PH13NR03000GAFAA-TRANSFORMER-HT01AW229","price":237.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641875714419,"sku":"CARRIE-PH13NR03000GAFAA-TRANSFORMER-HT01AW229-GEN","price":209.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_a210ccd5-faed-47e4-9ff0-daa3f3e99e88.jpg?v=1775026195","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nr03000gafaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}