When I turn the switch to ON the unit goes through its normal cycle, but when it nears the very end of the up cycle, it makes a banging noise. There is a switch that stops the unit at the end of the cycle (as the basket comes up, it engages the switch and that should end the cycle). I replaced the switch that .. same problem. I thought that I had been given a bad replacement switch, so the parts house gave me another one .. again, same problem. It's not the switch. Could it be the on-off switch on the front of the unit? All help most apprciated. //Bob