I have a 2008 Limelight Hot Tub. (6) months after I bought it the lights went out. Dealer said it was a bad bulb. I bought some (expensive) bulbs and changed them out one at a time. Lights still didn't work. REP came out to look at it. Couldn't figure it out. Wanted me to replace my IQ2020 at a cost of $550. Said if that didn't work, I would just need to replace other items until the problem was solved. Did I mention that I'm paying for each (costly) item I replace? Yeah, about that. I told him to kick rocks. Lo and behold, about six months later, THE LIGHTS CAME ON! That lasted about a month. Since then, only (1) light has worked. Tub still works great, it's just that I am tired of having just the one light. Anyone have any suggestions?