{"product_id":"carrier-ph13pr03000gajaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V — PH13PR03000GAJAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V for Model PH13PR03000GAJAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH13PR03000GAJAA\u003c\/strong\u003e heat pump system. The 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 all safety switching. When this transformer fails, the system goes completely silent: the thermostat goes blank, no calls for heating or cooling are processed, and the unit will not respond to any commands. A failed transformer is often misdiagnosed as a control board failure, making correct part identification critical.\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 | 50\/60 Hz | Foot-mount configuration | Factory OEM part number HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a Factory Authorized Part built to Carrier's exact VA rating and insulation class. Undersized or off-brand transformers may overheat under full control-circuit load, trip thermal protection, and fail prematurely — especially in systems with zone boards or accessories drawing additional VA.\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, wire stripper, multimeter. Verify primary tap wiring matches your supply voltage (115V, 208V, or 230V) before energizing. Photograph all wiring connections before disconnecting the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against 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 Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier model PH13PR03000GAJAA\u003c\/strong\u003e. Also cross-references under part number HT01AW229A. Confirm your supply voltage and VA requirement on the unit data plate before ordering. Our HVAC parts specialists are available to verify fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641843241331,"sku":"CARRIE-PH13PR03000GAJAA-TRANSFORMER-HT01AW229","price":190.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641843274099,"sku":"CARRIE-PH13PR03000GAJAA-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_a9235e2c-57c9-417d-b834-fddd318231b5.jpg?v=1775026022","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13pr03000gajaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}