OEM Carrier Dual Run Capacitor 45+5 MFD 440V for Model PY1RJA048115AAWB

This OEM dual run capacitor is the factory-specified replacement for the Carrier PY1RJA048115AAWB packaged unit. Working in tandem with both the compressor and condenser fan motor, the dual run capacitor stores and releases the electrical charge needed to start and sustain motor operation. When it fails, symptoms typically include a humming compressor that won't start, a fan motor that spins slowly or not at all, or a unit that short-cycles and trips on high-pressure lockout. Catching and replacing a weak capacitor early prevents far more costly compressor damage down the road.

• Specs: 45+5 MFD (microfarad) | 440V rated | Round case | ±6% factory tolerance | 50/60 Hz | Castor oil protected, no-PCB construction | OEM Part Number: P291-4554RS (also cross-references HC30GB230 capacitor assembly, P291-0403, P291-1503)
• OEM vs Generic: This is a genuine Carrier OEM capacitor meeting exact factory ±6% MFD tolerance. Generic capacitors often drift to ±10% or worse over time, accelerating wear on the compressor and condenser fan motor and voiding equipment warranties.
• Install difficulty: 2/5 — Always discharge the capacitor fully before touching terminals (use an insulated resistor or discharge tool). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting. The dual run capacitor has three terminals labeled HERM (compressor), FAN, and COM (common).
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse on all in-stock orders.

Compatibility: Designed for the Carrier PY1RJA048115AAWB packaged unit. Cross-references OEM part numbers HC30GB230 (draft inducer motor capacitor assembly), P291-4554RS (dual run), P291-0403, and P291-1503 (single run). Always verify MFD rating and voltage on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — order with confidence.