OEM Carrier Single Run Capacitor P291-1503 for Model PH1PPB030000AAAA

This OEM single run capacitor (part number P291-1503) is the factory-specified replacement for the Carrier PH1PPB030000AAAA packaged heat pump unit. A single run capacitor maintains the continuous electrical charge needed to keep either the compressor or the fan motor running at peak efficiency during each cooling or heating cycle. When this capacitor fails, you'll typically notice symptoms such as a humming sound with no motor startup, intermittent short-cycling, warm air from a system that appears to be running, or a complete failure to start.

• Specs: OEM part number P291-1503 | Single run capacitor | Factory-matched MFD and voltage rating | Round case design for drop-in fitment on Carrier PH1PPB030000AAAA
• OEM vs Generic: This is a genuine OEM Carrier capacitor, built to exact factory tolerances (±3% MFD). Generic alternatives commonly ship at ±10% tolerance, which accelerates motor winding stress and shortens compressor life — costing far more in downstream repairs.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before removing terminals (use an insulated resistor or discharge tool). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (to verify discharge and confirm MFD). Photograph all wiring connections before removal.
• Warranty: 1-year OEM factory warranty. Orders placed before our daily cutoff ship same business day from stock.

Compatibility: Designed and factory-matched for the Carrier PH1PPB030000AAAA packaged heat pump. Always cross-reference the MFD and voltage ratings on your existing capacitor's label or the unit data plate before ordering to confirm exact fitment. Have a question about compatibility? Our HVAC parts specialists verify fitment before you buy — contact us today and get your system back up and running fast.