OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY1RPA048115AAWA

This OEM single run capacitor is the factory-specified replacement for the Carrier PY1RPA048115AAWA packaged unit. Operating at 4 MFD (microfarad) and 370 VAC, this oval-style capacitor powers the draft inducer motor — the component responsible for venting combustion gases and proving airflow before ignition. When this capacitor fails, the inducer motor will hum without spinning, fail to start entirely, or cause the furnace to lock out after a brief ignition attempt. Replacing it promptly prevents further motor damage and restores reliable heating operation.

• Specs: 4 MFD (µF) | 370 VAC | Oval case | Single run | 50/60 Hz | OEM part numbers: HC30GB230 (motor kit), P291-0403, P291-1503
• OEM vs Generic: This OEM Totaline/Carrier capacitor is reliability-tested to 60,000 service hours with ±5% capacitance tolerance. Generic alternatives often run ±10% MFD, which stresses the inducer motor windings and shortens service life.
• Install difficulty: 2/5 — Always discharge the capacitor before touching terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode recommended). Photograph all wiring before disconnecting. Verify MFD and voltage on the unit data plate before installation.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY1RPA048115AAWA packaged unit in conjunction with the HC30GB230 draft inducer motor assembly. Cross-references P291-0403 and P291-1503. Always confirm the 4 MFD / 370V rating against your unit's data plate before ordering. Have a fitment question? Our team verifies compatibility before you buy — contact us today.