OEM Carrier Single Run Capacitor P291-1503 for Model PH3PEA048000AA

This is the factory-specified OEM single run capacitor for the Carrier PH3PEA048000AA 4-ton packaged heat pump unit. Unlike a dual run capacitor, a single run capacitor is dedicated to one motor — either the compressor or the condenser fan — providing the precise phase-shifted electrical charge needed to start and sustain motor operation. When this capacitor weakens or fails, the affected motor may hum and refuse to start, trip its thermal overload, or cause the entire unit to short-cycle and shut down on a protection fault. Replacing it promptly prevents costly motor burnout.

• OEM Part Number: P291-1503 | Factory-matched MFD and voltage rating for the Carrier PH3PEA048000AA | Round or oval case (verify orientation on your unit's data plate)
• OEM vs Generic: This is a genuine Carrier OEM capacitor held to exact ±3% MFD tolerance. Aftermarket alternatives commonly run ±10%, which accelerates motor winding stress and can void your compressor warranty.
• Install Difficulty: 2/5 — Always disconnect power at the breaker and discharge the capacitor fully before handling. Tools needed: 1/4" or 5/16" nut driver, needle-nose pliers, insulated discharge resistor or screwdriver, multimeter. Photograph all terminal wiring before disconnecting leads.
• Warranty & Shipping: Backed by a 1-year OEM factory warranty. In stock and ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed as a direct OEM replacement for the Carrier PH3PEA048000AA packaged heat pump (4-ton, R-410A). Always confirm the MFD rating and voltage printed on your existing capacitor's label before ordering — these specifications must match exactly for safe operation. Our HVAC parts specialists are available to verify fitment before you purchase. Order today and get your system back online fast with same-day shipping from NationalHVACParts.com.