i bought a 3/4h wayne brand deep well jet pump .took it out of the box wired it to the control box put it in a bucket full of water and the motor just humms for 3 seconds and stops .about 1 minite later it srarted humming again then stoped.its a 3 wire 240v. new controlbox 16966lws1/189304. hope this help .i need help.i checked the volts between thecontrol box and pump it checks out 120 on black/yell/white/240 across.now what can i do?