{"product_id":"carrier-hc1bnx060000abaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for HC1BNX060000ABAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model HC1BNX060000ABAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier HC1BNX060000ABAA\u003c\/strong\u003e unit. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, contactor coil, and all low-voltage control circuit components. When this part fails, the entire control circuit goes dark — the thermostat loses power, the system won't respond to any command, and no heating or cooling operation is possible. A failed transformer is often misdiagnosed as a bad thermostat or control board, making correct identification critical before replacing more expensive parts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Factory-matched design for Carrier control circuits | OEM part number HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact factory VA and voltage specifications. Undersized or off-tolerance generic transformers can overheat under load, blow fuses repeatedly, and damage downstream control boards — making OEM the only recommended choice for this application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker and disconnect switch before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminal connectors. Verify 24V output with a multimeter before reconnecting the control circuit. Label all low-voltage wires prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eHC1BNX060000ABAA\u003c\/strong\u003e unit. Always verify primary voltage (120V), secondary voltage (24V), and VA rating on your existing transformer's label before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — reach out before you order and ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909337862515,"sku":"CARRIE-HC1BNX060000ABAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909337895283,"sku":"CARRIE-HC1BNX060000ABAA-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_becefc66-21d7-4807-9a4f-a7123fe20b6d.jpg?v=1782941602","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hc1bnx060000abaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}