{"product_id":"carrier-gb1aav060155agja-transformer-h3hvc4","title":"OEM Carrier Transformer 40VA 120V-24V for GB1AAV060155AGJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model GB1AAV060155AGJA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01CN001\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier GB1AAV060155AGJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V signal voltage required by the thermostat, control board, gas valve, and all low-voltage control components. When this part fails, the entire control circuit goes dead — the thermostat loses power, the furnace will not respond to any call for heat, and nothing operates. A failed transformer is often mistaken for a bad thermostat or control board, making this a smart first diagnostic step.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Single-phase | Class 2 insulation | Foot-mount configuration | Direct OEM replacement for part number HT01CN001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory OEM transformer is wound to exact VA and voltage tolerances required by the Carrier GB1AAV060155AGJA control board. Undersized or off-tolerance generic transformers can nuisance-trip on overload, damage downstream low-voltage components, or cause intermittent control failures over time.\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, wire stripper, needle-nose pliers, multimeter (to confirm 24V output after install). Note wire colors and terminal positions before disconnecting the old unit. Job typically takes 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 for the Carrier \u003cstrong\u003eGB1AAV060155AGJA\u003c\/strong\u003e gas furnace. Verify your existing transformer's VA rating and voltage markings on the data plate or component label before ordering to ensure a correct fit. If you're unsure, our parts team is available to confirm fitment before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909406642547,"sku":"CARRIE-GB1AAV060155AGJA-TRANSFORMER-HT01CN001","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909406675315,"sku":"CARRIE-GB1AAV060155AGJA-TRANSFORMER-HT01CN001-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-HT01CN001_b80f68c0-5ad6-4e37-8fac-865624eea42d.jpg?v=1782939840","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb1aav060155agja-transformer-h3hvc4","provider":"National HVAC Parts","version":"1.0","type":"link"}