{"product_id":"carrier-fx4anf030000abaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 24V for FX4ANF030000ABAA — HT01CN236","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01CN236 for Model FX4ANF030000ABAA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) is the factory-specified 24V control circuit transformer for the \u003cstrong\u003eCarrier FX4ANF030000ABAA\u003c\/strong\u003e fan coil air handler. The transformer steps down line voltage (120V) to the 24V signal voltage required to power your thermostat, control board, and all low-voltage system controls. When this component fails, the entire control circuit goes dead — the thermostat goes blank, the system won't respond to calls for cooling or heating, and nothing operates despite power being present at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01CN236 | Direct plug-and-play replacement with factory wiring harness compatibility\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 specifications for the FX4ANF030000ABAA. Generic transformers frequently run under-rated VA, causing premature thermal cutout trips and repeated nuisance failures — especially under multi-zone thermostat loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Note primary and secondary wiring connections before disconnecting old unit. Confirm 24V output with a multimeter after installation before restoring full system power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier FX4ANF030000ABAA\u003c\/strong\u003e fan coil air handler. Verify your existing transformer's VA rating and primary\/secondary voltages against your unit's data plate before ordering. If you're unsure of fitment, our HVAC parts specialists can confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909490102643,"sku":"CARRIE-FX4ANF030000ABAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909490135411,"sku":"CARRIE-FX4ANF030000ABAA-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_508ac32a-0107-4c98-bf17-04127698060c.jpg?v=1782942556","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fx4anf030000abaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}