{"product_id":"carrier-transformer-fx4dnf061015aaaa","title":"OEM Carrier Transformer Replacement for Model FX4DNF061015AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FX4DNF061015AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier transformer supplies the essential 24V control voltage for your FX4DNF061015AAAA fan coil unit, powering the thermostat, relays, and control board from incoming line voltage. A failed transformer commonly results in no thermostat display, repeatedly blown low-voltage fuses, or unpredictable control malfunctions. This factory-spec replacement matches the original primary and secondary voltage ratings and VA capacity, ensuring properly regulated power and dependable system operation. Selecting the exact OEM transformer sidesteps the wiring and capacity issues frequently encountered with aftermarket universal units. Installation is moderate difficulty and best handled by a qualified HVAC technician: cut power at the disconnect, label the primary and secondary leads clearly, secure the new transformer, and transfer each connection one at a time. Always double-check the voltage and VA rating on your existing transformer before ordering for a guaranteed fit. Orders placed before 3PM CST ship the same business day, helping you restore control power quickly. Choose authentic Carrier parts for reliable, safe, long-term performance you can trust.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FX4DNF061015AAAA.\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":62942883479923,"sku":"carrier-transformer-fx4dnf061015aaaa","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-carrier-transformer-fx_bed80a5e-afb7-4003-ba0f-63d739f822dc.jpg?v=1781474211","url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fx4dnf061015aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}