OEM Carrier Dual Run Capacitor 40+5 MFD 440V for Model PY4GNAB24040NA

This is the genuine OEM Carrier dual run capacitor (part# P291-4054RS), factory-specified for the Carrier PY4GNAB24040NA split-system air conditioner. The dual run capacitor stores and releases electrical charge to start and sustain both the compressor and the condenser fan motor simultaneously. When this component begins to fail, you'll typically notice a loud humming with no motor movement, the system short-cycling within minutes of startup, a sluggish or non-starting condenser fan, or a complete no-cool situation. Replacing it promptly prevents compressor damage from repeated hard-start attempts.

• Specs: 40+5 MFD (microfarad) | 440V rated | Round case | ±6% factory tolerance | 50/60 Hz | Castor oil protected | No PCB | Replaces HC98KA041 & P291-4053RS
• OEM vs Generic: This is a genuine Carrier OEM capacitor built to exact factory tolerances. Generic aftermarket units often run ±10% MFD variance, which accelerates motor and compressor wear and can void equipment warranties. OEM is always the safer long-term investment.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (to verify capacitance before and after). Photograph all terminal wiring before disconnecting. This is a common DIY repair for experienced homeowners.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Confirmed fit for Carrier model PY4GNAB24040NA. Always verify the MFD rating and voltage printed on your original capacitor's label before ordering — never substitute a lower-rated capacitor. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy.