OEM Carrier Furnace Transformer 120V to 24V 40VA — HT01CN001 for Model UPFLOW150U6019A

The Carrier HT01CN001 is the factory-specified OEM control transformer for the UPFLOW150U6019A upflow gas furnace. This transformer steps down 120V line voltage to a safe 12/24V secondary output, powering the low-voltage control circuit that operates your thermostat, gas valve, and integrated furnace control board. When this transformer fails, the entire control circuit goes dark — the thermostat loses power, the system refuses to respond to any call for heat or cooling, and you may detect a faint burning smell or hear a faint buzz from the transformer housing itself.

• Specs: 120V primary | 12V / 24V dual secondary | 40VA rating | Factory-authorized OEM replacement | Replaces legacy part numbers HT01BJ115, 19EA41612, and 19EA42612
• OEM vs Generic: The OEM HT01CN001 is wound to exact Carrier factory tolerances, ensuring stable 24V output under full control-circuit load. Generic aftermarket transformers often underperform at rated VA, causing nuisance lockouts and premature board damage.
• Install difficulty: 2/5 — Shut off power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to verify 24V output after install). Label all low-voltage wires before disconnecting. Typical replacement time: 20–30 minutes for an experienced technician.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model UPFLOW150U6019A upflow gas furnace. Verify your existing transformer's primary voltage (120V) and VA rating (40VA) on the data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.