{"product_id":"carrier-pf1mnc036008aaaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 208\/230V–24V for PF1MNC036008AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V–24V for Model PF1MNC036008AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part number \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) is the factory-specified 24V control circuit transformer for the \u003cstrong\u003eCarrier PF1MNC036008AAAA\u003c\/strong\u003e fan coil and air handler unit. Its sole job is to step the line voltage down from 208\/230V to a safe 24V signal that powers every component in the control circuit — thermostat, relay coils, reversing valves, and the control board itself. When this transformer fails, the entire low-voltage control circuit goes dark: the thermostat loses power, the system stops responding to calls for heating or cooling, and nothing works — no error codes, no operation. Replacing it with the correct OEM unit restores the full 24V circuit to factory spec instantly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V Primary | 24V Secondary | 40VA Power Rating | OEM Part# HT01CN241 | Direct drop-in replacement, no modification required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part, manufactured to exact OEM voltage and VA tolerances. Generic transformers often run under-rated VA capacity, causing premature failure under full control-circuit load — especially in multi-stage or communicating systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade connectors, multimeter to verify 24V output post-install. Photograph all wiring before disconnecting. A qualified HVAC technician is recommended for safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer's warranty. In stock and 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 Confirmed fit for \u003cstrong\u003eCarrier model PF1MNC036008AAAA\u003c\/strong\u003e fan coil \/ air handler. Verify your unit's data plate lists a 208\/230V primary and 24V, 40VA secondary before ordering. Our HVAC parts specialists are available to confirm fitment — reach out before you order if you have any questions. Order today and get same-day shipping!\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643337101683,"sku":"CARRIE-PF1MNC036008AAAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643337134451,"sku":"CARRIE-PF1MNC036008AAAA-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_7d4dd077-e050-44ef-85bf-f2d60f826772.jpg?v=1775041521","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mnc036008aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}