Pumps stopped working

[likwid]

Well I plugged the Koralia into a different socket in the house and it started working again magically. So I brought it back to the socket by the tank that it used to be plugged into and it works again. It's weird, like it had to be recharged by a different socket in the house. I tried the same with my aquaclear but it doesnt work in any sockets. ????