I just bought a used SUndance Majesta 880. I did the wiring myself. The spa heats and circulates fine. However when I turn on the lights and the pumps, after a fairly short period of time, the lights go dim, then out, then a short time later the pumps go off but without an error code and with the pump display also showing the pump as on. The display also goes very dim. Any ideas. Could the wires be hooked up to just one leg of the 220? Thanks in advance for your help. Joe