OEM Carrier Dual Run Capacitor 45+5 MFD 370/440V for Model PY3PNA030060AA

This OEM dual run capacitor is the factory-specified replacement for the Carrier PY3PNA030060AA air conditioning system, supplied under Carrier/Totaline part numbers P291-4553RS (original) and its current factory successor P291-4554RS. A dual run capacitor serves as the electrical energy reservoir that starts and sustains both the compressor (HERM terminal, 45 MFD) and the condenser fan motor (FAN terminal, 5 MFD) simultaneously. When this capacitor weakens or fails, you'll typically hear a low hum with no motor movement, experience short-cycling, notice warm air coming from the unit, or find the compressor attempting to start but immediately tripping on thermal overload. Also included in this kit listing are single-run capacitors P291-0403 and P291-1503 for auxiliary motor circuits on this model.

• Specs: 45+5 MFD (microfarad) | 370/440V dual-rated | Round case, ~2" diameter | ±6% tolerance | 50/60 Hz | CBB65B rated | UL approved current interrupter | Non-PCB castor oil dielectric fluid
• OEM vs Generic: This is a genuine Carrier/Totaline OEM capacitor built to exact factory tolerances. Generic aftermarket capacitors often carry a ±10% MFD tolerance, which accelerates compressor wear, shortens motor life, and can void system warranties.
• Install Difficulty: 2/5 — Discharge the old capacitor fully before touching any terminals (use an insulated screwdriver across terminals). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (to confirm capacitance). Always photograph existing wiring before disconnecting. Label HERM, FAN, and COMMON terminals before removal.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier model PY3PNA030060AA. Cross-references include OEM part numbers P291-4553RS, P291-4554RS (current successor), P291-0403, P291-1503, and legacy cross HC98JA046. Verify the MFD rating and voltage on your unit's data plate before ordering — our fitment team is available to confirm compatibility before you buy.