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This OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the Carrier GB3AAV060115AFJA gas furnace. The run capacitor maintains a continuous phase-shifted electrical charge to keep the blower motor running at peak efficiency after startup. When this capacitor degrades or fails, symptoms include a humming blower motor that won't spin up, intermittent short-cycling, reduced airflow, or a furnace that trips on limit switches due to insufficient circulation. Replacing a failed run capacitor promptly protects the blower motor from heat-related burnout and restores full system performance.
Compatibility: Designed specifically for the Carrier GB3AAV060115AFJA gas furnace. Always verify the MFD rating and voltage on your unit's data plate or existing capacitor before ordering to ensure a correct fit. Not sure? Our HVAC parts specialists are available to confirm fitment before you buy — ensuring you get the right part the first time.