{"product_id":"carrier-ph10ja018000acaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V–24V for PH10JA018000","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V–24V for Model PH10JA018000ACAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH10JA018000ACAA\u003c\/strong\u003e packaged heat pump unit. The control transformer steps down the high-voltage supply (115, 208, or 230 VAC) to the 24 VAC signal voltage that powers the entire control circuit — thermostats, contactors, relays, and safety switches. When this transformer fails, the result is total control loss: the thermostat goes dark, the system will not call for heating or cooling, and no components will energize. A faulty transformer is often misdiagnosed as a board failure, making correct identification critical before ordering additional parts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA power rating | 115\/208\/230 VAC primary (multi-tap) | 24 VAC secondary | 50\/60 Hz | Foot-mount configuration | OEM part number HT01AW229 \/ HT01AW229A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Factory Authorized Part built to Carrier's exact VA rating and insulation class. Off-brand transformers rated at nominal 60VA often run undervoltage under load, causing nuisance tripping of downstream controls and shortened service life for contactors and boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker panel before proceeding. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Photograph all wiring connections before disconnecting. Verify primary tap wire matches your supply voltage (115V, 208V, or 230V) before re-energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock — ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePH10JA018000ACAA\u003c\/strong\u003e packaged heat pump. The multi-tap primary (115\/208\/230V) makes this transformer suitable across a range of Carrier, Bryant, and Payne equipment sharing the HT01AW229 specification — always verify the OEM part number on your unit's wiring diagram or data plate before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642032050547,"sku":"CARRIE-PH10JA018000ACAA-TRANSFORMER-HT01AW229","price":200.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642032083315,"sku":"CARRIE-PH10JA018000ACAA-TRANSFORMER-HT01AW229-GEN","price":176.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_ba72b00c-19ba-4ed4-a259-f62115301236.jpg?v=1775026177","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja018000acaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}