OEM Carrier Single Run Capacitor P291-1503 for Model PF1MNB070000AAAA

This OEM single run capacitor (part number P291-1503) is the factory-specified replacement for the Carrier PF1MNB070000AAAA fan coil unit. The run capacitor maintains a continuous phase-shifted current to keep the blower motor running at peak efficiency after startup. When it degrades or fails, you'll typically notice symptoms such as a humming motor that won't spin, intermittent shutdowns, reduced airflow, or a complete no-start condition — all signs that the capacitor can no longer hold its charge within spec.

• Specs: Single run capacitor | OEM part number P291-1503 | Factory-matched MFD and voltage rating | Round or oval case per OEM specification | ±5% tolerance for reliable motor protection
• OEM vs Generic: This is a genuine Carrier OEM part built to exact factory tolerances. Aftermarket alternatives often fall outside the ±5% MFD window, causing premature motor wear, increased amp draw, and shortened equipment life — costing far more in the long run.
• Install difficulty: 2/5 — Always discharge the capacitor fully before handling using an insulated resistor or discharge tool. Tools needed: 1/4" nut driver, needle-nose pliers, and a multimeter to verify capacitance. Photograph all wiring connections before removal.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our warehouse.

Compatibility: Designed for the Carrier PF1MNB070000AAAA fan coil unit. Always verify the MFD and voltage rating printed on your existing capacitor and on the unit's data plate before ordering to ensure an exact match. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — call or chat today.