{"product_id":"carrier-ha1cjx060000aaaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for HA1CJX060000AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA for Model HA1CJX060000AAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier HA1CJX060000AAAA\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to 24V to power the entire control circuit — including the thermostat, contactor coil, gas valve, and control board. When this component fails, the system will appear completely unresponsive: no thermostat display response, no contactor pull-in, and no ignition sequence whatsoever. It is often the first component to check when diagnosing a completely dead control circuit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Class 2 transformer | Direct OEM replacement for part number HT01AW229 | Factory-matched impedance and VA output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to Carrier's exact VA and impedance specifications, ensuring stable 24V output under full control-circuit load. Undersized generic transformers frequently overheat and trip internal thermal protection, causing intermittent lockouts that are difficult to diagnose.\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 proceeding. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all low-voltage wiring before disconnecting terminals. Installation typically takes 20–30 minutes.\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 for the \u003cstrong\u003eCarrier HA1CJX060000AAAA\u003c\/strong\u003e 5-ton packaged unit. Confirm your unit's control-circuit voltage requirements match 120V\/24V 40VA before ordering. Our HVAC parts specialists are available to verify fitment — reach out before you order if you have any questions. \u003cstrong\u003eOrder today and enjoy same-day shipping on all in-stock parts.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909353492851,"sku":"CARRIE-HA1CJX060000AAAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909353525619,"sku":"CARRIE-HA1CJX060000AAAA-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_2c49d455-ec41-4c11-bfe3-e131da153bd9.jpg?v=1782941554","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ha1cjx060000aaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}