OEM Carrier Dual Run Capacitor 45+5 MFD 370V for Model PH10JA03600GAFAA

This OEM dual run capacitor (Part# P291-4553RS) is the factory-specified replacement for the Carrier PH10JA03600GAFAA air conditioning system. The dual run capacitor stores and releases the electrical charge required to start and keep both the compressor and condenser fan motor running during every cooling cycle. When this component begins to fail, you'll typically notice the system humming without the compressor or fan spinning up, the unit short-cycling, or a complete failure to cool — all classic signs of capacitor degradation caused by heat stress and normal electrical wear over time.

• Specs: 45+5 MFD (microfarad) | 370V rated | Round case | ±6% tolerance | 50/60 Hz | AFC: 10,000 | Non-PCB castor oil protected dielectric fluid | UL approved current interrupter | Height: 4 5/16" (4 7/8" w/ terminals) | Diameter: 2"
• OEM vs Generic: This OEM Carrier/Totaline capacitor is manufactured to exact factory specifications, ensuring proper MFD tolerance and voltage rating for your unit. Generic aftermarket capacitors often operate at ±10% MFD tolerance, which accelerates wear on the compressor and fan motor and can void equipment warranties.
• Install Difficulty: 2/5 — A straightforward DIY repair for most homeowners. Always shut off power at the disconnect box and discharge the old capacitor before touching any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter. Photograph all wiring connections before removal to ensure correct reinstallation.
• Warranty & Shipping: Backed by a 1-year OEM factory warranty. In stock and ships same business day from our warehouse — get your system back up fast.

Compatibility: Directly fits Carrier model PH10JA03600GAFAA. Note that P291-4553RS has been superseded by OEM part P291-4554RS — both are fully compatible direct replacements. Always verify MFD rating and voltage on your unit's data plate before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy.