{"product_id":"carrier-ph12na04200gagaa-transformer-h4oyjb","title":"OEM Carrier Transformer 60VA 115\/208\/230V for PH12NA04200GAGAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V — HT01AW229 for Model PH12NA04200GAGAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-authorized replacement control transformer for the \u003cstrong\u003eCarrier PH12NA04200GAGAA\u003c\/strong\u003e packaged heat pump unit. Part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e is a foot-mounted, multi-tap primary transformer that steps line voltage (115V, 208V, or 230V) down to a clean \u003cstrong\u003e24V AC secondary\u003c\/strong\u003e at \u003cstrong\u003e60VA\u003c\/strong\u003e to power the low-voltage control circuit. When this transformer fails, the entire control circuit goes dead — the thermostat has no 24V signal, the contactor cannot be energized, and the unit will not respond to any call for heating or cooling. A failed transformer is often indicated by no display on a thermostat, a blown 3A or 5A control fuse, or zero voltage reading at the C and R terminals of the air handler\/control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60VA rated | Primary: 115V \/ 208V \/ 230V multi-tap | Secondary: 24V AC | Foot-mount configuration | Factory-authorized OEM part (HT01AW229 \/ 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 insulation ratings, reducing heat buildup and protecting downstream boards and contactors. Generic units can run outside rated VA, risking nuisance fuse trips or control board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit at the disconnect before proceeding. Tools needed: multimeter (verify 0V before touching terminals), flathead and Phillips screwdrivers, needle-nose pliers. Photograph all wiring connections before removal. Confirm your unit's line voltage matches the appropriate primary tap 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 Direct OEM replacement for \u003cstrong\u003eCarrier PH12NA04200GAGAA\u003c\/strong\u003e packaged heat pump units. Cross-references include HT01AW229A. Verify primary voltage tap requirements against your unit's data plate before installation. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you order — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641950032243,"sku":"CARRIE-PH12NA04200GAGAA-TRANSFORMER-HT01AW229","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641950065011,"sku":"CARRIE-PH12NA04200GAGAA-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_d29b734c-a312-4d13-9a15-e47e2d492855.jpg?v=1782943042","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na04200gagaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}