{"product_id":"carrier-pf4mnb061000abaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 208\/230V–24V for PF4MNB061000ABAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer 208\/230V–24V for Model PF4MNB061000ABAA\u003c\/h1\u003e\u003cp\u003eThis factory OEM control transformer (part #HT01CN241) is the direct replacement for the \u003cstrong\u003eCarrier PF4MNB061000ABAA\u003c\/strong\u003e air handler. The transformer steps down 208\/230V line voltage to the 24V AC signal that powers the entire control circuit — including the thermostat, contactor coil, and all safety switches. When this transformer fails, the result is total system unresponsiveness: the thermostat goes blank, no calls for heating or cooling are answered, and the system is completely dead. A failed transformer is often caused by a shorted control wire, a seized contactor coil, or a miswired thermostat drawing excessive current.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V Primary | 24V Secondary | 40VA capacity | Foot-mount design | Factory-matched for Carrier PF4MNB061000ABAA air handler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage specifications. Undersized or off-tolerance aftermarket units can overheat under normal control-circuit loads, causing nuisance shutdowns or premature failure — always use OEM in commercial or high-demand applications.\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, wire stripper, multimeter (to verify 24V output after install). Always inspect control wiring for shorts before energizing — a shorted wire will blow the new transformer immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship 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 for the \u003cstrong\u003eCarrier PF4MNB061000ABAA\u003c\/strong\u003e air handler. Verify your unit's data plate shows a 208\/230V primary control transformer requirement before ordering. Not sure if this is the right part? Our HVAC specialists verify fitment before you buy — reach out today and we'll confirm.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643255869811,"sku":"CARRIE-PF4MNB061000ABAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643255902579,"sku":"CARRIE-PF4MNB061000ABAA-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_6ad775e4-4d28-4ccc-9216-4b350881e86e.jpg?v=1775041627","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf4mnb061000abaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}