{"product_id":"carrier-fb4cnf060000abaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 120V\/24V for FB4CNF060000ABAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model FB4CNF060000ABAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part# \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eFB4CNF060000ABAA\u003c\/strong\u003e air handler. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, and all low-voltage control components. When this part fails, the entire control circuit goes dead — your thermostat loses power, the system becomes completely unresponsive, and neither heating nor cooling will operate. A failed transformer is often caused by a wiring short in the low-voltage circuit, so always inspect thermostat wiring and control board terminals before installing a replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary input | 24V secondary output | Factory-matched OEM construction | Direct drop-in replacement for part# HT01CN241\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to Carrier's exact VA and voltage tolerances, ensuring stable 24V output under full control-circuit load. Generic transformers may under-deliver VA capacity, causing nuisance tripping or premature failure when multiple control components draw simultaneously.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or terminal connectors. Photograph all wiring before disconnecting. Check secondary output voltage with a multimeter after installation to confirm 24V before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 Engineered specifically for the Carrier \u003cstrong\u003eFB4CNF060000ABAA\u003c\/strong\u003e air handler. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering. If you're unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you buy — no guesswork, no returns.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909534962035,"sku":"CARRIE-FB4CNF060000ABAA-TRANSFORMER-HT01CN241","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909534994803,"sku":"CARRIE-FB4CNF060000ABAA-TRANSFORMER-HT01CN241-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-HT01CN241_936d9513-362e-42af-9a4f-9c17e89253fb.jpg?v=1782940930","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fb4cnf060000abaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}