OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY1PEB048090AAAA

This OEM single run capacitor is the factory-specified replacement for the Carrier PY1PEB048090AAAA package unit. The run capacitor stays energized throughout the entire operating cycle, providing the continuous phase-shifted current that keeps the fan motor running smoothly and efficiently. When it degrades or fails, you'll typically hear a telltale hum with no motor movement, notice warm air blowing despite the system calling for cooling, or find the unit short-cycling within the first few minutes of operation.

• Specs: 4 MFD (microfarad) | 370V rated | Oval case | OEM part numbers: P291-0403, P291-1003, P291-1503 | Factory-matched tolerance for precise motor performance
• OEM vs Generic: Genuine Carrier OEM capacitors are manufactured to exact factory tolerance specifications. Generic aftermarket units commonly run outside acceptable MFD tolerance, accelerating fan motor wear and risking premature compressor strain on your package unit.
• Install difficulty: 2/5 — Always shut off power at the disconnect and allow the capacitor several minutes to self-discharge before touching any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, insulated screwdriver, multimeter. Photograph all wiring connections before disconnecting to ensure correct reinstallation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY1PEB048090AAAA packaged unit. Always verify the MFD rating and voltage stamped on your unit's existing capacitor or data plate before ordering. Cross-references OEM part numbers P291-0403, P291-1003, and P291-1503. Have questions about fitment? Our HVAC parts specialists verify compatibility before you order — contact us today and get your system back up and running fast.