{"product_id":"carrier-ph12na02400gacaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V–24V — PH12NA02400GAC","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V–24V for Model PH12NA02400GACAA\u003c\/h1\u003e\u003cp\u003eThis is the factory-authorized OEM control transformer (Part #HT01AW229) for the \u003cstrong\u003eCarrier PH12NA02400GACAA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down high-voltage line power — 115V, 208V, or 230V primary — to the 24V AC signal that powers the entire control circuit: thermostat, contactor coil, reversing valve, and all safety switches. When this transformer fails, the result is total system shutdown — no response from the thermostat, no contactor pull-in, and no operation in any mode. A failed transformer is often mistaken for a bad control board; always verify 24V output at the secondary before condemning any downstream component.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA power rating | 115\/208\/230V AC primary (multi-tap) | 24V AC secondary | 50\/60 Hz | Foot-mount configuration | OEM Part #HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Factory Authorized Parts (FAP) unit built to exact Carrier specifications. Generic transformers are frequently under-rated for VA load, causing overheating under full control circuit demand and premature failure — particularly on packaged units with multiple control loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before proceeding. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade terminals. Verify primary tap wiring matches your supply voltage (115V, 208V, or 230V) before energizing. Confirm 24V output with a multimeter after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on parts and workmanship. 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 specifically for the \u003cstrong\u003eCarrier PH12NA02400GACAA\u003c\/strong\u003e packaged heat pump. Also cross-references as HT01AW229A. Verify your unit's data plate voltage requirements before selecting primary tap wiring. Our HVAC parts specialists are available to confirm fitment prior to your order — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641963499891,"sku":"CARRIE-PH12NA02400GACAA-TRANSFORMER-HT01AW229","price":190.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641963532659,"sku":"CARRIE-PH12NA02400GACAA-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_8c8d05b3-c14f-4fdc-bf30-5d666b4e3f70.jpg?v=1775026210","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na02400gacaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}