{"product_id":"carrier-ph10ja03000gahaa-transformer-h4oyjb","title":"OEM Carrier Transformer 60VA 115\/208\/230V for PH10JA03000GAHAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V — HT01AW229 for Model PH10JA03000GAHAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-authorized control transformer for the \u003cstrong\u003eCarrier PH10JA03000GAHAA\u003c\/strong\u003e packaged unit. The transformer steps down high-voltage line power (115V, 208V, or 230V primary) to the 24V AC signal that energizes every low-voltage control circuit in the system — including the thermostat, contactor coil, gas valve, and control board. When this transformer fails, the entire control circuit goes dead: the thermostat goes blank, the system refuses to respond to any call for heating or cooling, and you may detect a burning odor or a tripped secondary fuse. Replacing it with the OEM unit (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) restores factory-specified voltage regulation and eliminates the risk of nuisance tripping caused by undersized or off-tolerance aftermarket units.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60VA rating | Primary: 115V \/ 208V \/ 230V multi-tap | Secondary: 24V AC | Foot-mounted design | Factory Authorized Parts (FAP) designation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01AW229 is wound to exact Carrier factory tolerances, ensuring stable 24V output under full control-circuit load. Generic transformers rated at the same VA can exhibit voltage sag under load, causing erratic thermostat behavior, contactor chatter, and premature board failure.\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 beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output post-install), wire nuts or spade connectors. Always photograph the existing wiring harness before disconnecting any leads. Discharge any capacitors in the control panel before working near 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 Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier PH10JA03000GAHAA\u003c\/strong\u003e packaged units. Also fits other Carrier, Bryant, and Payne models that specify a 60VA foot-mounted transformer with 115\/208\/230V primary and 24V secondary — verify your unit's data plate and existing part number before ordering. Our parts specialists are available to confirm fitment before you purchase.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642006163827,"sku":"CARRIE-PH10JA03000GAHAA-TRANSFORMER-HT01AW229","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642006196595,"sku":"CARRIE-PH10JA03000GAHAA-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_e7412991-d4b9-4c09-af64-fc686989d10a.jpg?v=1782943022","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja03000gahaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}