What cause my Savio WM3600 GPH pump start and stop running?

SOURCE: How to clean and re-start a Savio WM3600 GPH pond pump

After checking the power supply to the pump, we found a short and have temporarily fixed the problem by plugging the pump into the house! I will need to buy a new electrical outlet. Just glad it wasn't the pump. That would have been difficult to get out of the skimmer to replace it! I am planning to drain the pond in a couple weeks and hope to be able to clean the pump then. My fish are happy now!

SOURCE: what would cause my savio

1. The sump pump could be causing an over current situation if it is bound up. If this were the case it would probably kick the breaker immediately or very soon after turning on with breaker reset.
2. There could be an over current situation by having a short in the motor. You can check this with a electric meter used on a DEENERGIZED circuit with it in ohms to test resistance. Motors generally have a resistance of 1.3 to 2.3 ohms. Check by placing the two leads on the two wires going directly to the pump. Must be DEENERGIZED or electrically dead or you may destroy the meter. If resistance is near 0.0 ohms then the motor has an internal short.

3. There could be an over current if the motor is shorted to ground. With DEENERGIZED disconnect the neutral (white wire) and check the resistance as described above with one of the leads on the hot (black) and the other on the ground (green). If low resistance like near zero then shorted to ground

4. The electrical cord could be damaged which may indicate like number 2 or 3 above, examine the cord when removing the pump.

5. The breaker could be bad, but not very likely. Could switch out with an identical one and check.

Finally- if #1, clear obstruction; if #2 or #3 replace pump; if #4 replace cord if possible; if #5 swap breaker.