{"product_id":"carrier-pf1mnc036010aaaa-transformer-h3hwwy","title":"OEM Carrier 40VA Transformer 24V Control Circuit — PF1MNC036010AAAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model PF1MNC036010AAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PF1MNC036010AAAA\u003c\/strong\u003e air handler. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, and all low-voltage switching components. When this part fails, the entire control circuit goes dead — your thermostat will show no power, the system won't respond to any call for heating or cooling, and you may blow a control-circuit fuse repeatedly. Replacing the transformer is one of the most cost-effective repairs in HVAC service.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary → 24V secondary | 40VA rating | Factory-matched terminals | OEM part number HT01CN241\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances specified by Carrier engineering. Undersized or off-tolerance generic transformers can overheat, trip their internal thermal fuse, and damage downstream control boards — costing far more than the part itself.\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 nuts or quick-connect terminals. Always label low-voltage wires before disconnecting. Verify primary and secondary voltages with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before 3 PM ship the same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier PF1MNC036010AAAA\u003c\/strong\u003e air handler. Always verify primary voltage, secondary voltage (24V), and VA rating on your unit's data plate before ordering to ensure a correct fit. Have a question about fitment? Our HVAC parts specialists verify compatibility before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643336905075,"sku":"CARRIE-PF1MNC036010AAAA-TRANSFORMER-HT01CN241","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643336937843,"sku":"CARRIE-PF1MNC036010AAAA-TRANSFORMER-HT01CN241-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01CN241_8030dc0b-ca23-4693-a010-e96bbc5bbf47.jpg?v=1775016471","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mnc036010aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}