OEM Carrier Single Run Capacitor 7.5 MFD 370V for Model PF4MNA018000AAAA

This OEM single run capacitor is the factory-specified replacement for the Carrier PF4MNA018000AAAA fan coil and air handler system. The run capacitor stores and releases the electrical charge needed to keep the blower or condenser fan motor running smoothly and efficiently. When this component fails, you'll typically notice the motor humming without starting, the system short-cycling shortly after startup, or the unit failing to produce airflow entirely — all signs pointing to a failed or weak capacitor that must be replaced to restore normal operation.

• Specs: 7.5 MFD (microfarad) | 370V rated | Oval case form factor | Factory-matched ±5% tolerance | OEM part number P291-0753 (superseded by P291-0754)
• OEM vs Generic: OEM capacitors are manufactured to exact Carrier factory tolerances, ensuring proper motor voltage support and longevity. Generic alternatives often carry ±10% MFD variance, which can cause premature motor wear and compressor stress over time.
• Install difficulty: 2/5 — Always discharge the capacitor completely before touching terminals. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting to ensure correct reassembly.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for use with Carrier model PF4MNA018000AAAA fan coil units. Verify the MFD and voltage ratings on your unit's data plate before ordering to confirm fitment. Note: Carrier sources capacitors from third-party manufacturers (such as Genteq/GE); labeling on the capacitor body will reflect the component manufacturer, not Carrier. Have questions about fitment? Our HVAC parts specialists verify compatibility before you order.