OEM Carrier Dual Run Capacitor 40+5 MFD 440V for Model PH10JA04200GACAA

This OEM dual run capacitor (part number P291-4054RS) is the factory-specified replacement for the Carrier PH10JA04200GACAA packaged unit. The dual run capacitor stores and delivers the electrical charge that starts and sustains both the compressor and condenser fan motor. When it fails, you'll typically hear a humming sound with no motor start, notice the unit short-cycling within minutes of startup, or find the system tripping on high-pressure lockout due to a struggling compressor. A companion start capacitor (P281-8806, 88–108 MFD 330V) is also available for this model — consider replacing both at the same service call to restore full starting torque and extend compressor life.

• Specs (P291-4054RS): 40+5 MFD (microfarad) | 440V rated | Round case | ±6% tolerance | 50/60 Hz | 10,000 AFC | Castor oil protected | No PCB | RoHS compliant
• OEM vs Generic: This is a genuine Carrier/Totaline OEM capacitor matched to factory tolerances. Generic aftermarket capacitors often carry ±10% MFD variance, which accelerates motor winding wear and shortens compressor life — especially in packaged rooftop configurations like the PH10JA series.
• Install difficulty: 2/5 — Always discharge the capacitor before handling any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring before disconnecting. The dual run capacitor has three terminals: HERM (compressor), FAN (condenser fan motor), and COM (common). Match each wire exactly.
• Warranty: 1-year OEM manufacturer warranty against defects. Orders placed by cutoff time ship same business day from our warehouse.

Compatibility: Fits Carrier model PH10JA04200GACAA packaged unit. Verify the MFD rating and voltage stamped on your existing capacitor's data label before ordering — never substitute a lower voltage or mismatched MFD rating. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you order — contact us today and get back up and running fast.