{"product_id":"carrier-ph11ja030000aaaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V-24V — PH11JA030000AA","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer 115\/208\/230V–24V for Model PH11JA030000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer for the \u003cstrong\u003eCarrier PH11JA030000AAAA\u003c\/strong\u003e packaged heat pump unit, identified by OEM part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e. The control transformer steps down line voltage (115, 208, or 230V primary) to a safe 24V AC secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the system goes completely dark: the thermostat loses power, nothing calls for heating or cooling, and the unit will not respond to any command. A failed transformer is often misdiagnosed as a bad control board — always test the transformer first.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60VA power rating | 115\/208\/230V AC primary (multi-tap) | 24V AC secondary | Foot-mount configuration | 50\/60 Hz | OEM part number HT01AW229 (also replaces HT01AW229A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Factory Authorized Parts (FAP) OEM transformer, wound to exact Carrier specifications. Generic aftermarket units frequently run outside rated VA tolerance, overheat under load, and void system warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: multimeter, wire nuts or spade terminals, screwdriver set, needle-nose pliers. Always verify primary tap wiring matches your supply voltage (115V, 208V, or 230V) before energizing. Label all wires prior to disconnection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier model PH11JA030000AAAA\u003c\/strong\u003e packaged heat pump units. Also fits compatible Bryant and Payne equipment calling for the HT01AW229 \/ HT01AW229A specification. Confirm your unit's data plate voltage and VA rating before ordering. Our team is available to verify fitment before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641976508787,"sku":"CARRIE-PH11JA030000AAAA-TRANSFORMER-HT01AW229","price":190.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641976541555,"sku":"CARRIE-PH11JA030000AAAA-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_f63902b0-1313-43b7-8575-2a35311f4acc.jpg?v=1775026073","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph11ja030000aaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}