{"product_id":"carrier-ph10ja02400gahaa-transformer-h4oyjb","title":"OEM Carrier Transformer 60VA 115\/208\/230V–24V for PH10JA02400GAHAA","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer HT01AW229 for Model PH10JA02400GAHAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH10JA02400GAHAA\u003c\/strong\u003e. The transformer steps line voltage (115\/208\/230V primary) down to the 24V used by the system's control circuit — powering the thermostat, contactor coils, gas valve, and all low-voltage safety controls. When this transformer fails, the entire control circuit goes dead: the thermostat gets no power, the system won't call for heating or cooling, and nothing responds. It is a foot-mounted, 60VA rated unit with a multi-tap primary to accommodate varying supply voltages.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60VA rating | Primary: 115 \/ 208 \/ 230V AC | Secondary: 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 — wound and insulated to exact factory specifications. Generic transformers often use lower-grade core laminations and thinner windings, increasing the risk of thermal failure and nuisance tripping under peak load conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wires before disconnecting. Verify your supply voltage matches the correct primary tap before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePH10JA02400GAHAA\u003c\/strong\u003e. Confirm your unit's supply voltage (115V, 208V, or 230V) matches one of the primary taps before ordering. If your system is showing a completely dead thermostat or unresponsive controls, this transformer should be tested first with a multimeter before replacement. Questions about fitment? Our HVAC parts specialists verify compatibility before every order — reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642015895923,"sku":"CARRIE-PH10JA02400GAHAA-TRANSFORMER-HT01AW229","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642015928691,"sku":"CARRIE-PH10JA02400GAHAA-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_7cd63ae9-201b-4d10-8226-a6a5de219630.jpg?v=1782943123","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja02400gahaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}