OEM Carrier 40VA Control Transformer 120V–24V for Model UPFLOW175U6020A

This is the factory OEM replacement transformer for the Carrier UPFLOW175U6020A upflow gas furnace. The control transformer steps line voltage down from 120V primary to 24V secondary at 40VA, powering the low-voltage control circuit that operates your thermostat, gas valve, inducer, and ignition sequence. When the transformer fails, the entire control circuit loses power — the result is a furnace that's completely unresponsive: no ignition attempt, no inducer start, and a blank or unresponsive thermostat.

• Specs: 120V Primary | 24V / 12V Secondary | 40VA Rating | OEM Part Number HT01CN001 | Replaces legacy part numbers HT01BJ115, 19EA41612, and 19EA42612
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM transformers are wound to exact VA tolerances, preventing nuisance trips and premature failure that can occur with undersized aftermarket units.
• Install difficulty: 2/5 — Shut off power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wires before disconnecting. A multimeter test on the secondary (expect ~24–26V AC at no load) confirms the new transformer is good before buttoning up the panel.
• Warranty: 1-year OEM factory warranty included. Orders placed by 5 PM ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier UPFLOW175U6020A upflow furnace. Confirm your existing transformer reads 120V primary and 24V secondary before ordering. If your system has a dual-secondary (12V/24V tap), this transformer is compatible with both configurations. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — call or chat today.