OEM Carrier Single Run Capacitor P291-1003 for Model FA4ANC042008AEAA

This OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the Carrier FA4ANC042008AEAA air handler. The run capacitor maintains a continuous phase-shifted current to keep the blower motor running at peak efficiency after startup. When this capacitor begins to fail, you may notice the blower motor humming without turning, sluggish motor startup, reduced airflow, or the air handler short-cycling — all signs that the capacitor can no longer hold its rated charge and must be replaced promptly to prevent permanent motor damage.

• Specs: Single run capacitor | OEM part P291-1003 | Factory-matched MFD rating | 370V or 440V rated round case | ±5% tolerance for precise motor protection — verify exact MFD and voltage on your unit's data plate before ordering
• OEM vs Generic: This is a genuine Carrier OEM capacitor manufactured to exact factory tolerances. Aftermarket substitutes frequently run outside ±10% MFD tolerance, placing excessive heat and electrical stress on your blower motor windings and dramatically shortening motor service life.
• Install Difficulty: 2/5 — Always shut off power at the breaker and discharge the capacitor terminals fully before handling. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter to verify discharge. Photograph all wiring connections before removal to ensure correct reinstallation.
• Warranty: Backed by a 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships the same business day from our climate-controlled warehouse.

Compatibility: Designed specifically for the Carrier FA4ANC042008AEAA fan coil air handler. Always confirm the MFD rating and operating voltage stamped on your existing capacitor or listed on the unit's data plate match this part before ordering. Our HVAC parts specialists are available to verify fitment — order with confidence and get your system running today.