{"product_id":"carrier-transformer-fk4cnf001000ahaa","title":"OEM Carrier Transformer Replacement Part for Model FK4CNF001000AHAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement Part for Model FK4CNF001000AHAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier transformer is the correct control-voltage replacement for your Carrier FK4CNF001000AHAA fan coil unit. The transformer reduces incoming line voltage to the 24V circuit that energizes your thermostat, relays, and contactor — the components that let your system start and run safely. A failed transformer commonly results in a fully dead air handler with no response at the thermostat, so quick replacement is essential. Built to Carrier's factory specifications for the FK4CNF001000AHAA, this part supplies the proper VA rating and primary\/secondary voltages with an exact mounting fit, avoiding the overheating and compatibility risks of universal parts. Installation is moderate and intended for a qualified HVAC professional: disconnect power, label the existing color-coded leads, and wire the new transformer in the identical configuration. Selecting the OEM component preserves your equipment warranty and ensures clean, stable control voltage. We keep this transformer in stock for immediate shipment — order before 3PM CST and it ships the same day so your system is restored fast.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FK4CNF001000AHAA.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62942922834291,"sku":"carrier-transformer-fk4cnf001000ahaa","price":54.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-carrier-transformer-fk_a170e4a3-e3b1-4b76-9c30-0ed997fcd5b6.jpg?v=1781474249","url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fk4cnf001000ahaa","provider":"National HVAC Parts","version":"1.0","type":"link"}