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This is the OEM factory-specified start capacitor (part number P281-1896S) for the Payne PA10JA042000AHAA split-system air conditioner. The start capacitor delivers the high-voltage boost needed to get the compressor motor spinning from a dead stop. When it fails, you'll typically notice the compressor humming but not starting, the system tripping the breaker repeatedly, or the unit simply failing to cool despite the fan running normally. Replacing a failed start capacitor promptly prevents costly compressor burnout.
Compatibility & Ordering: Engineered specifically for the Payne PA10JA042000AHAA condensing unit. Before ordering, confirm the MFD and voltage rating on your existing capacitor or your unit's data plate to ensure a precise match. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us before placing your order.