i have a aquarium systems natural wave controller that doesnt seem to be working right...the power strip has three plugs that you connect your pumps to or mjs to which cycle on and off....well its not powering the mjs but if i plug three lamps to it the unit will turn the lamps off and on....i took the housing off and it has a circiut board on it and im thinking one of the diodes is bad...does anyone know how these things are wired and if its repairable...

alfred