Jfharper
Member
I'm on a well and my booster pump is humming when the pressure switch is engaged manually. I recently replaced the starting capacitor, even swapped in a new spare to test, same hum. Pressure switch is new as well. Power went out last night in the neighborhood, this morning, I went to manually trip the booster, and it hummed. The breaker was not tripped and the pressure switch did it's job by not engaging at low pressure. I can freely turn the motor from the back. Is there anything else I can check? Someone mentioned the starting switch in the back burnt or stuck in the run position...I don't know what the starting switch looks like. Odd that this happened after a power-out.