{"product_id":"carrier-transformer-fiop100c301ga","title":"OEM Carrier Transformer HT01BD372 for Model FIOP100C301GA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer HT01BD372 for Model FIOP100C301GA\u003c\/h1\u003e\n\u003cp\u003eThis genuine Carrier transformer (HT01BD372) steps down line voltage to the 24V control voltage that powers the thermostat, gas valve, relays, and control board on Carrier model FIOP100C301GA. When a transformer fails, the unit goes completely dead at the controls — no display, no call for heat or cool — even though high-voltage power is present. This OEM replacement is wound to the exact VA rating and primary\/secondary voltages your system requires, ensuring stable control power and protecting downstream components. Installation is a moderate job best suited to a technician or confident DIYer: kill power at the disconnect, photograph and label the primary and secondary leads, mount the new transformer, and reconnect. Expect 20–30 minutes with basic hand tools. Using a factory-spec part avoids the nuisance trips and board damage that under-rated generics can cause. In stock now and ships same-day on orders placed before 3PM CST. Get your furnace or air handler controls back online fast with a reliable OEM Carrier transformer. Contact our parts team for fitment help.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FIOP100C301GA.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62945511080307,"sku":"carrier-transformer-fiop100c301ga","price":42.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fiop100c301ga","provider":"National HVAC Parts","version":"1.0","type":"link"}