{"product_id":"carrier-ch14na04800gaaaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for CH14NA04800GAAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model CH14NA04800GAAAA\u003c\/h1\u003e\u003cp\u003eThis is the OEM replacement control transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier CH14NA04800GAAAA\u003c\/strong\u003e heat pump condenser. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dead — your thermostat loses power, the system stops responding to calls for heating or cooling, and in some cases a tripped secondary fuse is the only clue. Replacing it is one of the most cost-effective repairs in HVAC service.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01AW229 | Factory-matched impedance and thermal cutoff rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances for the Carrier control board. Undersized or off-tolerance generic units can trip repeatedly under full control-circuit load, damaging downstream boards and contactors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 0V before touching terminals). Label or photograph all low-voltage wiring before disconnecting. Total job time is typically 20–30 minutes.\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 Designed specifically for the Carrier \u003cstrong\u003eCH14NA04800GAAAA\u003c\/strong\u003e 4-ton heat pump condenser. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909615702387,"sku":"CARRIE-CH14NA04800GAAAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909615735155,"sku":"CARRIE-CH14NA04800GAAAA-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_e91fc283-0c99-4570-895b-76e775df3a2f.jpg?v=1782940785","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch14na04800gaaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}