{"product_id":"carrier-fv4cnb006l00abaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 120V-24V for FV4CNB006L00ABAA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model FV4CNB006L00ABAA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer (part# \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier FV4CNB006L00ABAA\u003c\/strong\u003e fan coil air handler. The transformer converts 120V line voltage to 24V AC to power the entire low-voltage control circuit — including the thermostat, control board, and zone controls. When this component fails, the result is a completely unresponsive system: no thermostat display, no fan operation, and no heating or cooling regardless of settings. A blown transformer is often traced to a shorted low-voltage wire, a failed control board, or a wiring mistake during installation, so always inspect the secondary circuit before replacing.\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 HT01CN236 | Factory-matched output voltage for reliable low-voltage circuit performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound and rated to Carrier's exact factory specifications, ensuring stable 24V output under full load. Generic transformers may deliver inconsistent voltage, causing erratic thermostat behavior, nuisance lockouts, or premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or quick-connect terminals. Verify 24V output with a multimeter after installation before restoring full system power. Photograph all wiring connections prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. 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\u003eFV4CNB006L00ABAA\u003c\/strong\u003e fan coil air handler. Confirm your unit's control circuit voltage and VA requirement on the data plate before ordering. If you're unsure of fitment or need help cross-referencing part number HT01CN236, our HVAC parts specialists are available to verify compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909492494707,"sku":"CARRIE-FV4CNB006L00ABAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909492527475,"sku":"CARRIE-FV4CNB006L00ABAA-TRANSFORMER-HT01CN236-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-HT01CN236_94dfc2d6-8590-4cef-ba00-3bd145a84217.jpg?v=1782939629","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fv4cnb006l00abaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}