{"product_id":"carrier-ph3geaa42000aa-transformer-h2uxan","title":"OEM Carrier Transformer 460V Pri 230V Sec 1564VA — PH3GEAA42000AA","description":"\u003ch1\u003eOEM Carrier Transformer 460V Primary \/ 230V Secondary 1564VA for Model PH3GEAA42000AA\u003c\/h1\u003e\u003cp\u003eThis genuine OEM Carrier transformer (part numbers \u003cstrong\u003eHT01BC701\u003c\/strong\u003e and \u003cstrong\u003eHT01BD242\u003c\/strong\u003e) is the factory-authorized replacement for the \u003cstrong\u003eCarrier PH3GEAA42000AA\u003c\/strong\u003e packaged unit. The transformer steps down incoming 460V primary power to 230V secondary voltage, delivering the correct operating power to essential control-circuit components throughout the unit. When this transformer fails, you'll typically see a complete loss of control power — the system will not respond to thermostat signals, no contactors will energize, and all downstream components will go offline. In some cases, a failed transformer may blow the low-voltage fuse or trip a breaker without any other obvious cause.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 460V Primary | 230V Secondary | 1564 VA Rating | OEM Part Numbers: HT01BC701 \/ HT01BD242 | Factory-matched electrical characteristics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier factory-authorized part, manufactured to exact design specifications for the PH3GEAA42000AA packaged unit. Generic transformers often deviate in VA rating or winding impedance, risking control board damage or nuisance tripping under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — High-voltage wiring is present. Shut off all power at the disconnect and verify zero voltage with a multimeter before proceeding. Tools needed: multimeter, insulated screwdrivers, wire stripper, needle-nose pliers. Label all wires before disconnecting. Recommended for qualified HVAC technicians.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty from date of purchase. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier PH3GEAA42000AA\u003c\/strong\u003e packaged unit. Cross-references: HT01BC701 and HT01BD242 are interchangeable OEM part numbers for this application. Always verify primary voltage (460V), secondary voltage (230V), and VA rating (1564VA) against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — just reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641398153587,"sku":"CARRIE-PH3GEAA42000AA-TRANSFORMER-HT01BC701","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641398186355,"sku":"CARRIE-PH3GEAA42000AA-TRANSFORMER-HT01BC701-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BC701_1aa5a706-caf8-4625-9f28-add257e62e39.jpg?v=1782942702","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3geaa42000aa-transformer-h2uxan","provider":"National HVAC Parts","version":"1.0","type":"link"}