OEM Carrier Single Run Capacitor for Model PY2PPB042090NB

This OEM single run capacitor is the factory-specified replacement for the Carrier PY2PPB042090NB packaged heating and cooling unit. The run capacitor provides a continuous phase-shifted current to keep the condenser fan motor or compressor running efficiently at full speed. When a run capacitor fails, the motor it supports can hum without starting, run sluggishly, overheat, draw excess amperage, or cause the unit to short-cycle — all signs of imminent motor burnout if left unaddressed.

• Specs: Single run capacitor | Factory OEM ratings matched to Carrier PY2PPB042090NB specification | Replaces OEM part numbers P291-0403 and P291-1503 | Round or oval case (per OEM spec) | ±3% tolerance for precise motor protection
• OEM vs Generic: This listing is available in OEM (factory-original) or generic equivalent. OEM units match exact capacitance and voltage tolerances required by Carrier engineering. Generic alternatives may carry ±10% MFD tolerance — adequate for budget repairs but not recommended for premium equipment longevity.
• Install difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before disconnecting the old unit. Installation typically takes under 30 minutes for an experienced technician.
• Warranty: 1-year OEM factory warranty on OEM part. Same-day shipping available on in-stock orders placed before 3 PM local time.

Compatibility: Designed and factory-matched for Carrier model PY2PPB042090NB. Always verify the MFD and voltage rating printed on your existing capacitor's label or the unit's data plate before ordering. Cross-references OEM part numbers P291-0403 and P291-1503. Have a question about fitment? Our HVAC parts specialists verify compatibility before every order ships.