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This genuine OEM start capacitor (part number P281-1766) is the factory-specified replacement for the Carrier PH4ANG030000BCAA heat pump system. The start capacitor delivers the high-voltage jolt of electrical energy required to bring the compressor up to operating speed. Without a healthy start capacitor, the compressor struggles to start, draws excessive current, and will typically trip on thermal overload or fail to start entirely — leaving you with no cooling or heating output.
Compatibility: Engineered for the Carrier PH4ANG030000BCAA heat pump. Always verify the MFD range and voltage rating on your unit's data plate before ordering to confirm fitment. Need help verifying compatibility? Our HVAC parts specialists are ready to assist before you buy.