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This is the factory-specified OEM single run capacitor (part number P291-1503) for the Carrier FH4ANA004000AAAA fan coil unit. The run capacitor maintains a continuous phase-shifted current to keep the blower motor running smoothly and efficiently. When this component fails, common symptoms include a humming motor that won't spin up, intermittent shutdowns, reduced airflow, or a blower that draws excessive amperage and trips the breaker. Replacing it promptly prevents secondary damage to the motor windings.
Compatibility: Engineered as a direct OEM replacement for the Carrier FH4ANA004000AAAA fan coil unit. Always verify the MFD rating and voltage printed on your existing capacitor's label or the unit data plate before ordering to confirm an exact match. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before your order ships — reach out via chat or phone.