OEM Carrier Single Run Capacitor P291-1503 for Model PH1ZPA048000ABAA

This OEM single run capacitor (part number P291-1503) is the factory-specified replacement for the Carrier PH1ZPA048000ABAA packaged heat pump system. A run capacitor provides the continuous phase-shifted electrical boost that keeps either the compressor or condenser fan motor spinning at full efficiency. When it fails, you'll typically notice a loud humming with no motor movement, intermittent shutdowns, or a complete no-start condition — all signs the capacitor can no longer hold its charge.

• Specs: Single run capacitor | Factory-matched MFD rating | 370V or 440V rated (verify on unit data plate) | Cylindrical case | OEM-spec ±5% tolerance for precise motor protection
• OEM vs Generic: This is a genuine OEM Carrier capacitor built to exact factory specifications. Generic alternatives often carry a wider ±10% MFD tolerance, which can accelerate motor winding stress and reduce compressor lifespan over time.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling — it can hold a lethal charge even when power is off. Tools needed: insulated screwdriver, 1/4" nut driver, needle-nose pliers, and a multimeter to verify discharge. Photograph all terminal wiring before disconnecting.
• Warranty: Backed by a 1-year OEM manufacturer warranty. Ships same business day from our fully stocked warehouse.

Compatibility: Engineered specifically for the Carrier PH1ZPA048000ABAA 4-ton packaged heat pump unit. Always cross-reference the MFD and voltage ratings printed on your original capacitor and unit data plate before ordering to confirm an exact match. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork, no returns.