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This is the factory-specified OEM start capacitor (part number P281-8806) for the Payne PA13NR018000AHAA single-stage split-system air conditioner. The start capacitor delivers the high-voltage surge needed to kick the compressor motor into rotation at startup. When it degrades or fails, you'll notice symptoms such as the compressor humming without starting, the system tripping a breaker, short-cycling immediately after startup, or the outdoor unit failing to energize altogether — all signs the start capacitor can no longer supply adequate starting torque.
Compatibility: Designed specifically for the Payne PA13NR018000AHAA split-system condenser. Always verify your unit's data plate capacitance (MFD) and voltage ratings match before installation. If you have any fitment questions, our HVAC parts specialists are available to confirm compatibility before you order — ensuring you get the right part the first time.