OEM Carrier Furnace Transformer 40VA 120V to 24V/12V for Model U19X150U60B

This is the genuine OEM Carrier transformer (part number HT01CN001), the factory-specified control circuit transformer for the Carrier U19X150U60B. The transformer steps down 120V line voltage to a safe 24V (and 12V) output to power the low-voltage control circuit — including your thermostat, relay coils, and control board. When this part fails, the entire control circuit loses power: the thermostat goes dark, the system won't respond to calls for heating or cooling, and you may hear a faint buzz or nothing at all from the unit.

• Specs: Primary voltage: 120V | Secondary voltage: 12V / 24V | VA rating: 40VA | Factory OEM part number: HT01CN001 | Replaces legacy part numbers HT01BJ115, 19EA41612, 19EA42612
• OEM vs Generic: This is a genuine Carrier factory part — not an aftermarket substitute. OEM transformers are wound to exact VA and voltage tolerances, protecting downstream components like your control board and thermostat from under- or over-voltage damage that generic units can cause.
• Install Difficulty: 3/5 — Shut off power at the breaker before beginning. Photograph all low-voltage wiring before disconnecting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after installation). If the transformer has blown a fuse, inspect control wiring for shorts before powering up the replacement.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse — order before 3 PM local time.

Compatibility: Engineered for the Carrier U19X150U60B. Verify your unit's data plate voltage and VA requirements before ordering — substituting incorrect VA-rated transformers can damage control boards. Our parts specialists are available to confirm fitment before you buy. Order today and get your system back online fast.