{"product_id":"carrier-ph12na036000aaaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V — PH12NA036000AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V–24V for Model PH12NA036000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM control transformer for the \u003cstrong\u003eCarrier PH12NA036000AAAA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down high-voltage primary power (115, 208, or 230 VAC) to the 24 VAC required by the low-voltage control circuit — powering the thermostat, contactor coil, and all safety controls. When this part fails, the entire control circuit goes dead: the thermostat loses power, the system won't respond to any call for heating or cooling, and nothing operates. A failed transformer may also blow the low-voltage fuse or trip a breaker on the control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA power rating | Primary voltage: 115 \/ 208 \/ 230 VAC | Secondary voltage: 24 VAC | 50\/60 Hz | Foot-mounted configuration | OEM Part Number: HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory-authorized Carrier transformer is wound to exact VA and voltage tolerances, ensuring reliable 24V output under full control-circuit load. Generic alternatives often run outside tolerance, causing intermittent lockouts, nuisance fuse failures, and shortened control board life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Disconnect and lock out all power before beginning. Tools needed: multimeter, flathead and Phillips screwdrivers, needle-nose pliers, wire stripper. Label all low-voltage wiring before disconnecting. Verify 24 VAC output after installation before closing the unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before the cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct factory replacement for \u003cstrong\u003eCarrier model PH12NA036000AAAA\u003c\/strong\u003e. Cross-references include HT01AW229A. Always verify your unit's data plate primary voltage (115V, 208V, or 230V) before ordering — this transformer supports all three. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641958060403,"sku":"CARRIE-PH12NA036000AAAA-TRANSFORMER-HT01AW229","price":190.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641958093171,"sku":"CARRIE-PH12NA036000AAAA-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_5a6211be-db10-48ed-8c83-44a066deff36.jpg?v=1775025994","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na036000aaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}