OEM Carrier Dual Run Capacitor 50+5 MFD 370V for Model PY3PNA036090AA

This is the factory-specified dual run capacitor for the Carrier PY3PNA036090AA packaged unit. The dual run capacitor serves a critical function: it stores and delivers the electrical charge needed to start and sustain both the compressor and the condenser fan motor simultaneously. When this capacitor weakens or fails, you'll typically hear a persistent hum with no motor startup, notice the system tripping off on thermal overload shortly after startup, or experience complete failure to cool. OEM part numbers covered: P291-5053RS (primary dual run), P291-0403 (single run), and P291-1503 (single run). Note: P291-5053RS has been superseded — the current OEM equivalent is P291-5054RS (440V rated), which is a direct, code-approved upgrade.

• Specs: 50+5 MFD (microfarad) | 370V rated (superseded by 440V P291-5054RS) | Round case | ±5% factory tolerance | Fits compressor (50 MFD) + condenser fan motor (5 MFD) terminals
• OEM vs Generic: OEM capacitors are wound to exact Carrier factory tolerance, ensuring correct motor torque curves and thermal protection. Aftermarket units commonly run ±10% MFD deviation, which accelerates compressor wear and can void equipment warranties.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wire connections before disconnecting. Observe HERM, FAN, and COM terminal labels carefully.
• Warranty & Shipping: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for Carrier PY3PNA036090AA packaged units. Cross-references: P291-5053RS, P291-5054RS, P291-0403, P291-1503, HC98JA051, 05706036. Always verify MFD rating and voltage against your unit's data plate before ordering. Our team is available to confirm fitment — order with confidence.