OEM Carrier Single Run Capacitor P291-1003 for Model FB4ANF036015ABAA

This OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the Carrier FB4ANF036015ABAA air handler. The run capacitor provides the continuous phase-shifted electrical charge required to keep the blower motor running at peak efficiency. When this capacitor fails, the blower motor may hum without starting, run sluggishly, overheat, or cause the air handler to shut down entirely — leaving your home without conditioned air or heat distribution.

• Specs: Single run capacitor | OEM part number P291-1003 | Factory-matched MFD and voltage rating | Round or oval case (verify against existing unit data plate) | ±5% tolerance for precise motor performance
• OEM vs Generic: This is a genuine Carrier OEM capacitor engineered to exact factory tolerances. Generic or off-brand capacitors often carry a ±10% MFD variance, which places additional strain on the blower motor windings and can significantly shorten motor life — ultimately costing more in downstream repairs.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter (for verification). Photograph all terminal connections before disconnecting the old capacitor 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 specifically for the Carrier FB4ANF036015ABAA fan coil air handler. Always confirm the MFD and voltage rating printed on your existing capacitor or unit data plate before ordering to ensure a correct fit. Our HVAC parts specialists are available to verify compatibility before you buy — no guesswork, no returns. Order today and get same-day shipping.