OEM Carrier Single Run Capacitor P291-1503 for Model PH1PPB042000AAAA

This OEM single run capacitor (part number P291-1503) is the factory-specified replacement for the Carrier PH1PPB042000AAAA packaged heat pump unit. The run capacitor maintains the continuous phase-shifted current needed to keep the compressor or fan motor spinning efficiently after startup. A failing capacitor typically causes audible humming with no motor movement, intermittent short-cycling, slow or labored fan spin, or complete failure to cool or heat — all signs it's time for an immediate replacement.

• Specs: Single run capacitor | Factory OEM-matched MFD rating | 370V or 440V rated (verify data plate) | Round or oval case | ±5% tolerance from the factory
• OEM vs Generic: This is a genuine OEM Carrier capacitor, manufactured to exact factory tolerance. Aftermarket/generic capacitors frequently ship at ±10% MFD variance, which accelerates motor winding stress, reduces efficiency, and shortens compressor service life.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling terminals. Tools needed: 1/4" nut driver, insulated needle-nose pliers, multimeter with capacitance mode. Photograph all wiring connections before removal to ensure correct reinstallation.
• Warranty: 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PH1PPB042000AAAA packaged heat pump system. Always verify the MFD and voltage rating printed on your existing capacitor or unit data plate before ordering to confirm correct fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — no guesswork required.