{"product_id":"carrier-ph12na018000abaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V — PH12NA018000ABAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V for Model PH12NA018000ABAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-authorized control transformer for the \u003cstrong\u003eCarrier PH12NA018000ABAA\u003c\/strong\u003e packaged unit. The transformer steps down line voltage — \u003cstrong\u003e115V, 208V, or 230V primary\u003c\/strong\u003e — to a stable \u003cstrong\u003e24V secondary\u003c\/strong\u003e, powering the entire low-voltage control circuit: thermostat, contactor coils, gas valve, and control board. When this transformer fails, the result is total system unresponsiveness — no thermostat communication, no call for heat or cool, and no contactor pull-in. Replace it with the exact OEM-specified unit to restore reliable control voltage to every downstream component.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA rating | Primary: 115 \/ 208 \/ 230 VAC | Secondary: 24 VAC | Foot-mount configuration | OEM Part # HT01AW229 (also referenced as HT01AW229A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and tested to Carrier's exact VA and voltage tolerances. Undersized or off-tolerance aftermarket transformers can sag under load, causing nuisance lockouts and premature control board failure — a far costlier repair.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect before beginning. Tools needed: multimeter, flathead and Phillips screwdrivers, wire stripper, needle-nose pliers. Verify primary voltage at your unit's data plate matches transformer input tap before wiring. Photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer 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 Designed and factory-specified for \u003cstrong\u003eCarrier model PH12NA018000ABAA\u003c\/strong\u003e. Cross-references include part numbers HT01AW229A, CIN-TRAN, and 30-BV2006. Always confirm primary voltage and VA requirement against your unit's data plate before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641973100915,"sku":"CARRIE-PH12NA018000ABAA-TRANSFORMER-HT01AW229","price":280.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641973133683,"sku":"CARRIE-PH12NA018000ABAA-TRANSFORMER-HT01AW229-GEN","price":246.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_699ba7ba-38dc-4ab5-8c76-7789aff01e7b.jpg?v=1775025989","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na018000abaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}