{"product_id":"carrier-fv4anf003000acaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 120\/24V for FV4ANF003000ACAA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model FV4ANF003000ACAA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier FV4ANF003000ACAA\u003c\/strong\u003e fan coil air handler. Its primary function is to step down 120V line voltage to the 24V AC signal that powers your thermostat, control board, and all low-voltage safety controls. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system refuses to respond to any call for heating or cooling, and you may detect a burning smell or a tripped fuse on the secondary side. Replacing it with the correct OEM part restores full system control immediately.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA capacity | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01CN236 | Designed for Carrier fan coil applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact factory VA and voltage tolerances, ensuring stable 24V output under full control circuit load. Generic transformers frequently deliver marginal voltage that causes nuisance lockouts, intermittent thermostat dropouts, and shortened control board life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, needle-nose pliers, multimeter. Label or photograph all wiring connections before disconnecting. Verify secondary output voltage after installation with the system energized.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse — order by 3 PM local time for guaranteed same-day dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This transformer is the OEM factory replacement for the \u003cstrong\u003eCarrier FV4ANF003000ACAA\u003c\/strong\u003e fan coil air handler. Always verify your unit's control circuit voltage requirements on the data plate or wiring diagram before ordering. If you need help confirming fitment, our HVAC parts specialists are available to verify compatibility before you purchase — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909495837043,"sku":"CARRIE-FV4ANF003000ACAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909495869811,"sku":"CARRIE-FV4ANF003000ACAA-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_8ac81b2a-d5ff-4272-b6f5-3c54da3659ed.jpg?v=1782938653","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fv4anf003000acaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}