To develop the start torque needed to run a two hp or more motor a capacitator is used to temperarly boost the power up(faster than a human can do it) so that motor gets a short extra jolt of power so it can start to turn , unfortuniatly these "caps" dry out in a few seasons from all the heat they make in use and no longer give that "Jolt" needed motor fails to start to move and they require replacement to makeit right again
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