OEM Carrier Single Run Capacitor 15 MFD 370V for Model PH1RPA048000AAWB

This OEM single run capacitor is the factory-specified replacement for the Carrier PH1RPA048000AAWB heat pump system, sold under Carrier part number P291-1503 (superseded by P291-1504). The run capacitor provides a continuous phase-shifted current to keep the fan motor or compressor running smoothly after startup. A failing run capacitor typically causes the motor to hum without spinning, draw excessive amperage, overheat, or cause the system to short-cycle and trip on thermal overload.

• Specs: 15 MFD (microfarad) ±5% | 370V AC rated | Oval case | 50/60 Hz | UL-approved current interrupter | Non-PCB dielectric fluid
• OEM vs Generic: This is the genuine OEM Totaline/Carrier capacitor meeting exact factory tolerance. Generic replacements often run ±10% MFD deviation, which accelerates motor winding stress and shortens component life. Note: Carrier sources capacitors from third-party manufacturers — the capacitor label will show the manufacturer name, not Carrier.
• Install Difficulty: 2/5 — Always disconnect power and discharge the capacitor fully before handling any terminals. Tools needed: 1/4" nut driver, insulated needle-nose pliers, multimeter (capacitance mode). Photograph all wire connections before removal.
• Warranty: 1-year OEM factory warranty. Orders placed by 3 PM ship same business day from our warehouse.

Compatibility: Designed for the Carrier PH1RPA048000AAWB heat pump system. This part number (P291-1503) has been superseded by P291-1504 — our listing ships the current active replacement. Always verify the MFD rating and voltage on your unit's data plate before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy.