{"product_id":"carrier-ph10ja024000agaa-transformer-h4oyjb","title":"OEM Carrier 24V Control Transformer HT01AW229 for PH10JA024000AGAA","description":"\u003ch1\u003eOEM Carrier 24V Control Transformer HT01AW229 for Model PH10JA024000AGAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH10JA024000AGAA\u003c\/strong\u003e heat pump system. The transformer steps down 120V line voltage to 24V AC, powering the low-voltage control circuit that operates the thermostat, contactor coil, reversing valve, and all safety controls. When this component fails, the entire control circuit goes dead — the thermostat display may go blank, the system won't respond to any calls for heating or cooling, and no staging relays will energize.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120V AC | Secondary voltage: 24V AC | Typical VA rating: 40VA | Factory-matched footprint and terminal configuration for drop-in replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM part, manufactured to exact factory VA tolerance and insulation ratings. Generic transformers can under-deliver VA capacity under load, causing nuisance tripping of secondary-side fuses and accelerated coil wear on contactors and relays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power (both line-voltage and low-voltage circuits) before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Always label wiring before disconnecting terminals.\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 Designed as a direct OEM replacement for \u003cstrong\u003eCarrier model PH10JA024000AGAA\u003c\/strong\u003e. Always verify primary voltage, secondary voltage, and VA rating against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you buy for total peace of mind.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642021630323,"sku":"CARRIE-PH10JA024000AGAA-TRANSFORMER-HT01AW229","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642021663091,"sku":"CARRIE-PH10JA024000AGAA-TRANSFORMER-HT01AW229-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_92a965ff-ff28-427e-bd14-0f710a8899c0.jpg?v=1775015765","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja024000agaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}