{"product_id":"carrier-pf1mnc037000aaaa-transformer-h3hwwy","title":"OEM Carrier 40VA Transformer 208\/230V–24V for PF1MNC037000AAAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer 208\/230V to 24V for Model PF1MNC037000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part number \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PF1MNC037000AAAA\u003c\/strong\u003e fan coil and air handler unit. The control transformer steps down line voltage (208\/230V) to the 24V signal voltage that powers the thermostat, control board, and all low-voltage switching throughout the system. When this transformer fails, the entire control circuit goes dark — the thermostat loses power, the system won't respond to any call for heating or cooling, and nothing works at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA capacity | 208\/230V primary input | 24V AC secondary output | Basler Electric model BE28316007 | Genuine OEM — factory-matched to exact VA and voltage ratings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and insulated to Carrier's exact factory tolerances, ensuring stable 24V output under full control-circuit load. Generic units often have substandard insulation and loose VA ratings that cause voltage sag, nuisance lockouts, and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output after install), wire stripper. Photograph all wiring connections before removal. Confirm 24V output post-installation before closing the unit.\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 Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier PF1MNC037000AAAA\u003c\/strong\u003e fan coil\/air handler. Always verify your unit's data plate voltage (208V or 230V) matches your supply before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643336446323,"sku":"CARRIE-PF1MNC037000AAAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643336479091,"sku":"CARRIE-PF1MNC037000AAAA-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_8bb565c8-158a-4737-a4ba-cbcd23b51b6a.jpg?v=1775016403","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mnc037000aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}