Beckett DP-800 submersible waterfall pump - Beckett Corporation Beckett Professional Pond Pump, 3500 gph

SOURCE: Pond pump trips circuit breaker

The circuit breaker trips because there is an electrical short in the pump itself or in the wire feeding the pump. A cause of this could be a bare wire, or a crack in a wire. Remove the pump and put it in a five gallon pail of water and test it. If it still trips the breaker you will know the problem is in the pump or the cord to the pump.

SOURCE: my beckett 300gph pump trips breaker and works

capacitor,windings failing,