{"product_id":"carrier-pf1mnc024005aaaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 208\/230V–24V for PF1MNC024005AAAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer 208\/230V–24V for Model PF1MNC024005AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier HT01CN241 control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PF1MNC024005AAAA\u003c\/strong\u003e fan coil and air handler system. The transformer steps down the 208\/230V line voltage to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When it fails, the result is typically a completely unresponsive system: a blank thermostat, no blower operation, and no heating or cooling — even though line voltage is present at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V Primary | 24V Secondary | 40VA Capacity | Direct OEM replacement for part number HT01CN241 | Factory-matched windings and mounting footprint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact Carrier voltage and VA tolerances. Undersized or off-spec generic units can overload under peak demand, causing nuisance trips, board damage, or premature control circuit failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (to confirm 24V output after install), wire nuts or spade connectors. Photograph existing wiring before disconnecting. Swap is straightforward with basic electrical experience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In stock — ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM drop-in replacement for \u003cstrong\u003eCarrier model PF1MNC024005AAAA\u003c\/strong\u003e. Verify your unit's data plate shows a 208\/230V primary and 24V secondary requirement before ordering. Our fitment team is available to confirm compatibility before you buy — reach out before placing your order and we'll verify the match.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643340345715,"sku":"CARRIE-PF1MNC024005AAAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643340378483,"sku":"CARRIE-PF1MNC024005AAAA-TRANSFORMER-HT01CN241-GEN","price":95.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01CN241_c5ef4f32-621b-48af-bb4d-23e5d0ce169d.jpg?v=1775041510","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mnc024005aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}