OEM Carrier Furnace Transformer 40VA 120V to 24V — HT01CN001 for Model UPFLOW175U6019X

This is the factory-specified OEM replacement control transformer for the Carrier UPFLOW175U6019X upflow furnace. The transformer steps down 120V line voltage to a 24V (with 12V tap) secondary signal that powers the entire low-voltage control circuit — including the thermostat, gas valve, and integrated furnace control (IFC) board. When this transformer fails, the entire control system loses power: the thermostat goes blank, the furnace won't respond to any call for heat, and in some cases the IFC board will not communicate. If nothing in your system powers up at all, a failed transformer is the first component to diagnose.

• Specs: 40VA | 120V Primary (60Hz) | 12/24V Dual Secondary | OEM Part Number HT01CN001 | Replaces legacy part numbers HT01BJ115, 19EA41612, and 19EA42612
• OEM vs Generic: This is a genuine OEM Carrier transformer built to factory VA rating and insulation class tolerances. Aftermarket units often run undersized VA ratings that overheat under peak demand, causing nuisance trips or premature IFC board failure.
• Install difficulty: 3/5 — Shut off the furnace disconnect and confirm zero voltage before starting. Tools needed: multimeter, flathead and Phillips screwdrivers, wire labels or tape. Document all 24V wiring connections before disconnecting the old unit. Improper wiring can damage the new transformer or IFC board.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM drop-in replacement for the Carrier UPFLOW175U6019X upflow gas furnace. Verify your unit's data plate lists the HT01CN001 transformer before ordering — if you're unsure, our HVAC parts specialists confirm fitment at no charge before you buy. Order before 3PM and your part ships today.