{"product_id":"carrier-ph12na024000abaa-transformer-h4oyjb","title":"OEM Carrier Transformer 60VA 115\/208\/230V for PH12NA024000ABAA","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer HT01AW229 for Model PH12NA024000ABAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM foot-mounted control transformer for the \u003cstrong\u003eCarrier PH12NA024000ABAA\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (115\/208\/230V primary) to a safe 24V secondary signal that powers your thermostat, control board, contactor coil, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dead — your thermostat displays nothing, the unit won't respond to any call for heating or cooling, and no diagnostic codes are generated because the board itself has no power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA rating | Primary voltage: 115\/208\/230V AC | Secondary voltage: 24V AC | Foot-mount configuration | OEM part number HT01AW229 (also supersedes HT01AW229A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part — not an aftermarket substitute. OEM transformers are wound to exact VA and impedance tolerances. Undersized or off-tolerance generic transformers can trip on overload, damage control boards, or fail prematurely under full load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Always label and photograph all low-voltage wiring before disconnecting. Verify primary voltage tap matches your supply voltage (115V, 208V, or 230V) before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory 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 Factory-specified replacement for Carrier model \u003cstrong\u003ePH12NA024000ABAA\u003c\/strong\u003e packaged units. Cross-references include HT01AW229A. Always verify your unit's data plate voltage and VA rating before ordering. Our fitment team is available to confirm compatibility before you buy — ships today when ordered before cutoff.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641968710003,"sku":"CARRIE-PH12NA024000ABAA-TRANSFORMER-HT01AW229","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641968742771,"sku":"CARRIE-PH12NA024000ABAA-TRANSFORMER-HT01AW229-GEN","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01AW229_6f528a2a-be35-4da3-8b8f-f7bd39c55cbc.jpg?v=1782943037","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na024000abaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}