{"product_id":"carrier-pf1mnb024000aaaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 208\/230V–24V for PF1MNB024000AAAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer (HT01CN241) for Model PF1MNB024000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part number \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PF1MNB024000AAAA\u003c\/strong\u003e air handler. The transformer steps down the 208\/230V line voltage to the 24V AC signal required to power the entire low-voltage control circuit — including the thermostat, relay coils, and control board. When this transformer fails, the system goes completely unresponsive: the thermostat goes dark, no heating or cooling stages activate, and the blower will not run. A failed transformer is one of the most commonly misdiagnosed HVAC faults, often confused with a bad thermostat or control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V primary | 24V secondary | 40VA rating | OEM part number HT01CN241 | Factory-matched output tolerance for reliable low-voltage control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM transformer, built to exact factory specifications for the PF1MNB024000AAAA. Generic transformers may vary in VA rating and insulation class, risking nuisance tripping or premature failure under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output after install), wire labels or tape. Photograph all wiring connections before disconnecting. Typical job time: 20–30 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. 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 Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier PF1MNB024000AAAA\u003c\/strong\u003e air handler. Verify your unit's data plate confirms a 208\/230V primary and 24V secondary control circuit before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — contact us today and ship the same day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643345719667,"sku":"CARRIE-PF1MNB024000AAAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643345752435,"sku":"CARRIE-PF1MNB024000AAAA-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_366bd94d-b133-44c2-b125-93c776db5422.jpg?v=1775041499","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mnb024000aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}