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This is the factory-specified OEM single run capacitor for the Carrier YAC48110YAC204AC split-system air conditioner, rated at 7.5 MFD (microfarad) and 370V. The run capacitor stores and releases electrical energy to keep the condenser fan motor spinning at peak efficiency during the full cooling cycle. A failing capacitor typically causes the fan motor to hum without spinning, the system to short-cycle, or a complete no-start condition — leaving you with a hot house and a compressor at risk of overheating.
Compatibility Note: Fits Carrier model YAC48110YAC204AC. Note: P291-0753 has been superseded by P291-0754 (440V version), which is a direct drop-in upgrade — a higher voltage rating is fully compatible as a replacement for a 370V-rated application. Always verify the MFD rating on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy.