Hi I own a water well and pump service co in southern md. usually the
symptoms you describe would indicate a problem with the motor or
switch. after the water has stopped feel the motor if it is hot the
problem is there and will most likley need to be replaced. if it is not
hot it may be dirt, sediment, or iron in the tube that goes from the
bottom of the switch to the head of the pump . if this gets clogged the
switch wont know the pressure has dropped on the system and it wont
start the pump. thanks scott