{"product_id":"carrier-pf1mnb024008aaaa-transformer-h3hwwy","title":"OEM Carrier Transformer 208\/230V–24V 40VA for PF1MNB024008AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 208\/230V–24V 40VA for Model PF1MNB024008AAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM replacement control transformer (part #HT01CN241) factory-specified for the \u003cstrong\u003eCarrier PF1MNB024008AAAA\u003c\/strong\u003e fan coil and air handler unit. The transformer steps down line voltage from 208\/230V to a 24V secondary signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, relay boards, and any zone controls. When this transformer fails, the result is total loss of 24V control power: the thermostat goes dark, the system becomes completely unresponsive, and no heating or cooling call can be executed. A failed transformer will often show 0V on the secondary leads when tested with a multimeter, or may have a visibly burned or cracked housing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V Primary | 24V Secondary | 40VA Rating | OEM Part #HT01CN241 | Factory-matched to Carrier PF1MNB024008AAAA specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier OEM transformer is wound to exact VA and voltage tolerances. Off-brand substitutes may deliver marginal 24V output under load, causing nuisance lockouts, erratic thermostat behavior, and premature contactor coil failure.\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, needle-nose pliers, wire labels or tape. Photograph all low-voltage wiring before disconnecting. Verify 0V at primary leads before handling. Typical replacement time: 20–40 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse when ordered by 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement transformer for the \u003cstrong\u003eCarrier PF1MNB024008AAAA\u003c\/strong\u003e air handler\/fan coil unit. Verify your unit's data plate lists 208\/230V primary and 24V\/40VA secondary before ordering. This part also cross-references across Carrier, Bryant, and ICP family equipment sharing the HT01CN241 specification. Have a fitment question? Our HVAC parts specialists confirm compatibility before you order — contact us today and ship the same day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643345129843,"sku":"CARRIE-PF1MNB024008AAAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643345162611,"sku":"CARRIE-PF1MNB024008AAAA-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_5db235e4-2c41-4990-ad4d-b519da25f8fe.jpg?v=1775041151","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mnb024008aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}