{"product_id":"carrier-hc1ajx060000aaaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for HC1AJX060000AAAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01AW229 for Model HC1AJX060000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified step-down transformer for the \u003cstrong\u003eCarrier HC1AJX060000AAAA\u003c\/strong\u003e packaged or split-system unit. Its job is to convert 120V line voltage down to the 24V signal voltage that powers your thermostat, control board, contactor coil, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dead — your thermostat goes blank, the system stops responding to calls for heating or cooling, and no fault codes appear because there is no power to generate them.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Class 2 transformer | Factory-matched footprint and terminal configuration for direct OEM swap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers like this HT01AW229 are wound to exact VA tolerances, ensuring reliable 24V output even under peak control-circuit demand. Generic units often run under-rated VA, causing voltage sag that triggers nuisance lockouts and premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade terminals. Label or photograph all wire connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier HC1AJX060000AAAA\u003c\/strong\u003e. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit's data plate or wiring diagram before ordering. If you need help confirming fitment, our HVAC parts specialists are standing by. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909340975475,"sku":"CARRIE-HC1AJX060000AAAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909341008243,"sku":"CARRIE-HC1AJX060000AAAA-TRANSFORMER-HT01AW229-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-HT01AW229_f48bdcf3-35ca-4aa0-88bf-9e0909329e28.jpg?v=1782941587","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hc1ajx060000aaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}