{"product_id":"carrier-upflow150fauhac14b-transformer-h3hvc4","title":"OEM Carrier Transformer 40VA 120V–24V for UPFLOW150FAUHAC14B","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01CN001 for Model UPFLOW150FAUHAC14B\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier UPFLOW150FAUHAC14B\u003c\/strong\u003e upflow gas furnace. The transformer steps down line voltage (120V) to the 24V AC signal required to power the control board, thermostat circuit, gas valve, and all low-voltage safety controls. When it fails, the entire control circuit goes dead — the thermostat loses communication, the furnace will not attempt ignition, and nothing responds. A failed transformer is often misdiagnosed as a control board failure, making this an essential first diagnostic replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | OEM part number HT01CN001 | Factory-matched construction for Carrier UPFLOW150FAUHAC14B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by the factory control board. Undersized or off-tolerance generic units can cause nuisance tripping, board brownouts, and shortened component life across the entire low-voltage circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and confirm zero voltage before handling. Tools needed: flathead and Phillips screwdrivers, wire nuts or quick-connect terminals, and a multimeter to verify 24V output after installation. Label all wires before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered and factory-matched for the Carrier \u003cstrong\u003eUPFLOW150FAUHAC14B\u003c\/strong\u003e upflow gas furnace. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640226763123,"sku":"CARRIE-UPFLOW150FAUHAC14B-TRANSFORMER-HT01CN001","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640226795891,"sku":"CARRIE-UPFLOW150FAUHAC14B-TRANSFORMER-HT01CN001-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01CN001_a75ccba5-a3eb-4095-89da-92639a5ce3f7.jpg?v=1775041445","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow150fauhac14b-transformer-h3hvc4","provider":"National HVAC Parts","version":"1.0","type":"link"}