OEM Carrier Dual Run Capacitor 55+5 MFD 370V for Model PH1RJA048000AAWB

This OEM dual run capacitor is the factory-specified replacement for the Carrier PH1RJA048000AAWB heat pump system. Sourced to original Carrier specification under part numbers P291-5553RS (original) and its current OEM successor P291-5554RS, this capacitor stores and releases the precise electrical charge needed to start and sustain both the compressor and condenser fan motor simultaneously. When a dual run capacitor begins to fail, symptoms include a tell-tale hum at startup with no motor spin, hard-starting that trips the breaker, the outdoor fan running while the compressor stays locked out, or the unit short-cycling within minutes of startup on a hot day.

• Specs: 55+5 MFD (microfarad) | 370V rated (440V-rated successor P291-5554RS is a direct upgrade) | Round case | ±5% factory tolerance | 50/60 Hz
• OEM vs Generic: OEM capacitors are manufactured to Carrier's exact tolerance specifications. Generic aftermarket units commonly run ±10% MFD variance, which accelerates motor winding stress, shortens compressor life, and can void equipment warranties.
• Install difficulty: 2/5 — Always discharge the capacitor fully before handling — stored charge can cause serious injury even with power off. Tools needed: 1/4" nut driver, insulated needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before disconnecting terminals.
• Warranty: 1-year OEM factory warranty. Ships same business day from our climate-controlled warehouse. Also includes secondary part P291-1503 (15 MFD 370V single run capacitor, successor P291-1504) for full capacitor kit compatibility.

Compatibility: Designed for the Carrier PH1RJA048000AAWB heat pump condenser. OEM part numbers P291-5553RS and P291-1503 are both factory-discontinued; P291-5554RS (55+5 MFD 440V) and P291-1504 (15 MFD 440V) are the current OEM-authorized successors and direct drop-in replacements. Always verify MFD and voltage ratings against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy.