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No water flow; pump motor humming.
Components
associated:
A) With the power to the spa disconnected, inspect
wet end for impeller blockage or jam. If clear, proceed to 2).
B) Check for frozen shaft by rotating with fingers or pliers.
If shaft spins freely, proceed to 3).
C) Starting capacitor may be defective. Replace capacitor.
Note: Other problems include burnt windings or bad centrifugal switch.
If shaft is hard to turn, bearings may be worn out. Replace pump assembly or
motor in either case. Use extreme
caution when testing pumps. Never touch a pump when power
is applied.
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