{"product_id":"carrier-ch13na03600gacaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V-24V for CH13NA03600GACAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model CH13NA03600GACAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier CH13NA03600GACAA\u003c\/strong\u003e split-system condenser. The transformer steps down line voltage from 120V to the 24V DC signal required to power your thermostat, contactor coil, and all low-voltage control circuitry. When this transformer fails, the entire control circuit goes dark — your thermostat will display nothing or lose communication, the contactor will never energize, and the system will not respond to any thermostat call. A failed transformer is often misdiagnosed as a bad control board, making this an important first diagnostic step.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120VAC | Output 24VAC | 40VA rating | OEM part number HT01AW229 | Factory-matched for Carrier CH13NA03600GACAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to exact factory VA tolerances, ensuring stable 24V output under full control-circuit load. Undersized generic transformers can sag under load, causing erratic contactor behavior and nuisance lockouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and confirm zero voltage with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Label all low-voltage wires before removal and verify the blown fuse on the secondary side, as a shorted low-voltage wire is frequently the root cause of transformer failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-specified for the Carrier \u003cstrong\u003eCH13NA03600GACAA\u003c\/strong\u003e 3-ton split-system condenser. Confirm your existing transformer's input\/output voltage and VA rating against your unit's data plate prior to ordering. Our HVAC parts specialists are available to verify fitment — order with confidence and get your system back online today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909633167731,"sku":"CARRIE-CH13NA03600GACAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909633200499,"sku":"CARRIE-CH13NA03600GACAA-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_581e8ba9-fa61-4803-b215-b229e938850a.jpg?v=1782939403","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch13na03600gacaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}