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This is the factory OEM start capacitor (part number P281-8806) designed specifically for the Carrier CA13NA01800GAAAA split-system air conditioner. The start capacitor provides the initial electrical boost needed to get the compressor motor spinning from a dead stop. Without a functioning start capacitor, the compressor struggles to start, draws excessive current, and will either hum without starting, trip the breaker, or cause premature compressor failure. If your Carrier unit is making a humming noise, failing to start, or shutting off immediately after startup, a failed start capacitor is one of the most common culprits.
Compatibility: This start capacitor is the direct OEM replacement for the Carrier CA13NA01800GAAAA condenser unit. Always verify the MFD rating and voltage printed on your existing capacitor or the unit's data plate before ordering to confirm exact fitment. Not sure it's the right part? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.