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This OEM capacitor kit includes the factory-specified dual run capacitor (P291-3553RS) and start capacitor (P281-1356) for the Carrier PH10JA024000AAAA heat pump. The dual run capacitor maintains continuous voltage to both the compressor and condenser fan motor during operation, while the start capacitor delivers the extra torque burst needed to get the compressor spinning from a dead stop. When either fails, you'll experience symptoms ranging from a humming compressor that won't start, short-cycling, tripped breakers, or a complete no-cool/no-heat lockout.
Compatibility: Both capacitors are factory-matched for the Carrier PH10JA024000AAAA heat pump. Always verify MFD ratings and voltage against your unit's data plate before installation. Note: P291-3553RS has been superseded by P291-3554RS — both are fully interchangeable for this application. Have questions about fitment? Our HVAC parts specialists verify compatibility before you order — in stock and ready to ship today.