OEM Carrier Dual Run Capacitor 40+5 MFD 440V for Model PY1PNB042060AAAA

This is the factory-specified OEM dual run capacitor for the Carrier PY1PNB042060AAAA packaged heat pump unit, replacing OEM part numbers P291-4054, P291-0403, and P291-1503. The dual run capacitor stores and releases 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 notice a loud hum with no motor rotation, a system that short-cycles within minutes of starting, or a condenser fan that spins slowly or not at all — all classic signs of capacitor failure on packaged units like the PY1PNB042060AAAA.

• Specs: 40+5 MFD (microfarad) | 370/440V dual-rated | Round case | 50/60Hz | Factory-matched ±3% tolerance (OEM-sourced)
• OEM vs Generic: OEM capacitors meet exact factory tolerance specifications for your Carrier unit. Generic aftermarket capacitors often carry a ±10% MFD tolerance, which accelerates motor winding wear and can shorten compressor life — particularly critical in a packaged unit where service access is more involved.
• Install difficulty: 2/5 — Always discharge the capacitor fully before touching terminals. Tools needed: 1/4" nut driver, needle-nose pliers, insulated screwdriver, multimeter. Photograph all wiring connections before disconnecting. Capacitor terminals are typically labeled HERM (compressor), FAN, and C (common).
• Warranty: 1-year OEM manufacturer's warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Designed for Carrier model PY1PNB042060AAAA packaged heat pump unit. This part covers the dual run capacitor position (P291-4054) as well as the associated single run capacitor positions (P291-0403, P291-1503) within the same platform. Always verify MFD rating and voltage on your unit's data plate before ordering. Our team is available to confirm fitment — just reach out before you buy.