OEM Carrier Single Run Capacitor P291-0753 for Model UPFLOW150U4819X

This OEM single run capacitor (part number P291-0753) is the factory-specified replacement for the Carrier UPFLOW150U4819X upflow air handler system. The run capacitor maintains a continuous phase-shifted current to keep the blower motor running at peak efficiency after startup. When this capacitor degrades or fails, you'll notice symptoms such as a humming motor that won't spin up, intermittent blower operation, warm air from supply registers, or a system that trips on thermal overload and shuts down shortly after starting.

• Specs: Single run capacitor | Factory-matched MFD rating | 370V/440V rated | Cylindrical case | ±5% OEM tolerance — verify your unit's data plate for exact MFD value before ordering
• OEM vs Generic: This is a genuine OEM Carrier part (P291-0753), manufactured to exact factory specifications. Generic alternatives often carry a looser ±10% MFD tolerance, which accelerates motor winding wear and can shorten blower motor life significantly over time.
• Install Difficulty: 2/5 — Always shut off power at the breaker and discharge the capacitor terminals before handling. Tools needed: 1/4" nut driver, insulated needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before disconnecting the old unit.
• Warranty & Shipping: Backed by a 1-year OEM factory warranty. In stock and ships same business day from our warehouse — get your system back online fast.

Compatibility: Designed for the Carrier UPFLOW150U4819X upflow air handler. Always cross-reference the MFD rating and voltage stamped on your existing capacitor or the unit's data plate to confirm fitment. Our parts specialists are available to verify compatibility before you order — no guesswork required.