OEM Carrier 40VA Control Transformer HT01CN001 for Model UPFLOW080FAUAC14B

This OEM step-down transformer is the factory-specified replacement for the Carrier UPFLOW080FAUAC14B upflow gas furnace. The transformer converts 120V line voltage to 24V AC to power the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and control board. When it fails, the system goes completely unresponsive: no thermostat display, no blower activity, and no ignition attempt. A failed transformer is one of the most overlooked root causes of a furnace that appears completely dead.

• Specs: 40VA rated | 120V primary / 24V secondary | Factory-matched footprint and terminal configuration for direct OEM fit | Part Number: HT01CN001
• OEM vs Generic: This is a genuine Carrier OEM transformer built to exact VA and impedance specifications. Generic transformers often underperform at rated VA, causing nuisance tripping of the onboard thermal fuse and premature control board failure.
• Install Difficulty: 2/5 — Shut off all power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to confirm 24V output after installation). Label all low-voltage wire connections before disconnecting the old unit.
• Warranty: 1-year OEM factory warranty. Orders ship same business day from our warehouse when placed before cutoff.

Compatibility: Designed for the Carrier UPFLOW080FAUAC14B upflow gas furnace. Verify your unit's data plate matches the 120V/24V 40VA transformer specification before ordering. Our fitment team is available to confirm compatibility — just reach out before you order and we'll verify it for you.