OEM Carrier Single Run Capacitor P291-1503 for Model PH1PNB048000AAAA

This OEM single run capacitor (part number P291-1503) is the factory-specified replacement for the Carrier PH1PNB048000AAAA packaged heat pump unit. The run capacitor stores and releases the precise electrical charge required to keep the compressor or fan motor running at peak efficiency. When this component fails, symptoms typically include a persistent humming noise with no motor movement, intermittent short-cycling, or a complete failure of the unit to start — all signs that the capacitor can no longer hold its rated charge.

• Specs: Single run capacitor | Factory-rated MFD and voltage matched to Carrier PH1PNB048000AAAA | Tight ±3% tolerance for reliable motor protection
• OEM vs Generic: This is a genuine OEM part built to Carrier's exact electrical specifications. Aftermarket capacitors commonly deviate ±10% from rated MFD, which accelerates motor winding wear and can shorten compressor life significantly.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling terminals. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter capable of reading capacitance. Photograph all wiring before disconnecting to ensure correct reinstallation.
• Warranty: Backed by a 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our climate-controlled warehouse.

Compatibility: Designed and verified for the Carrier PH1PNB048000AAAA packaged heat pump. Always confirm the MFD and voltage rating on your unit's data plate before ordering to ensure an exact match. Have a question about fitment? Our HVAC parts specialists verify compatibility before every order — contact us before you buy.