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This is the factory-specified OEM start capacitor (part number P281-8806) for the Carrier PH13NR048000AEAA heat pump condenser. The start capacitor delivers a powerful burst of electrical energy to kick-start the compressor motor. Without a functioning start capacitor, the compressor struggles to overcome initial load and will either hum without starting, trip the breaker, or cause the unit to short-cycle. If your Carrier heat pump fails to cool or heat and the compressor motor makes a low hum before shutting off, a failed start capacitor is one of the most common culprits.
Compatibility: Designed for Carrier model PH13NR048000AEAA (4-ton, single-stage heat pump). Cross-reference part numbers include: 1017H, 092A088B330CE7X, 1403H, and 88-108UF 330VAC. Always verify MFD range and voltage rating on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us today.