OEM Carrier Furnace Transformer 120V/24V 40VA — HT01CN001 for UPFLOW200UA14B

This is the OEM factory-specified replacement transformer (part number HT01CN001) for the Carrier UPFLOW200UA14B upflow gas furnace. The transformer steps down 120V line voltage to 24V AC to power the furnace's low-voltage control circuit — including the thermostat, control board, gas valve, and safety switches. When this transformer fails, the entire control system goes dark: the thermostat loses power, the furnace will not initiate a heat cycle, and no error codes will display. A failed transformer is one of the most common causes of a completely unresponsive furnace.

• Specs: 120V primary | 24V / 12V secondary | 40VA power rating | Also cross-references HT01CN001A, HT01BJ115, 19EA41612, 19EA42612
• OEM vs Generic: This OEM unit is factory-wound to exact voltage and VA tolerances required by the Carrier UPFLOW200UA14B control board. Generic transformers may deliver marginal output voltage, causing nuisance lockouts or premature control board failure.
• Install difficulty: 2/5 — Shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output after install), wire nuts or spade terminals. Photograph existing wiring before disconnecting.
• Warranty: 1-year OEM manufacturer warranty. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Designed for the Carrier UPFLOW200UA14B upflow furnace. Cross-references Carrier part numbers HT01CN001A, HT01BJ115, 19EA41612, and 19EA42612. Always verify primary voltage (120V) and VA rating on your unit's wiring diagram before ordering. Our fitment team is available to confirm compatibility before you buy.