My RSM S500 has been set up for two years and has recently developed a problem with the lighting (or the lighting panel.) When the timer steps to a new cycle, the T5s will come on for some random amount of time, then go out leaving nothing on (I am set to always have at least Moonlight LEDs on) If I manually switch the left time dial to Moonlight, then back to center, the T5s will light, then after a random time, they go out, plunging the tank into darkness. The other bank will come on or can be energized manually and will remain lit! What do I try?