{"product_id":"carrier-ph13nr01800gakaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V — PH13NR01800GAKAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V for Model PH13NR01800GAKAA\u003c\/h1\u003e\u003cp\u003eThis is the factory-authorized OEM control transformer for the \u003cstrong\u003eCarrier PH13NR01800GAKAA\u003c\/strong\u003e packaged heat pump unit. Part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e steps line voltage down from 115, 208, or 230V primary to a 24V secondary signal used to power the control board, thermostat circuit, and all low-voltage relay logic. When this transformer fails, the entire control circuit goes dead — the thermostat shows no response, no relays click, and the system will not heat, cool, or run in any mode. A failed transformer is often mistaken for a bad thermostat or control board; always verify 24V output at the secondary terminals before replacing more expensive components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA rating | Primary voltage: 115 \/ 208 \/ 230 VAC | Secondary voltage: 24 VAC | Foot-mounted form factor | OEM part number HT01AW229 \/ 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 capacity and insulation class, preventing thermal overload under full control-circuit load. Generic transformers often run at reduced VA margins, causing nuisance trips or early failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 0V before touching wires and 24V after install). Label or photograph all wiring connections before removing the old transformer. Secure foot-mount screws firmly to prevent vibration fatigue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against manufacturing defects. In-stock and 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 Carrier model \u003cstrong\u003ePH13NR01800GAKAA\u003c\/strong\u003e packaged heat pump units. Cross-references include HT01AW229A. Verify primary voltage matches your unit's supply voltage (115V, 208V, or 230V) before ordering. Have your model number and data plate handy — our team is available to confirm fitment before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641890460019,"sku":"CARRIE-PH13NR01800GAKAA-TRANSFORMER-HT01AW229","price":237.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641890492787,"sku":"CARRIE-PH13NR01800GAKAA-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_f99d4840-6979-4280-aed0-89ef1cddd46c.jpg?v=1775026009","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nr01800gakaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}