New to the pool experience, I had someone checkout my system and show me how to maintain the pool. I noticed that my lights were coming on before the maintenance and now they aren't. I've checked the wiring, control panel, breaker and plugs. all appear in working order. Reset the panel, reset the breaker, reset the plug. still no lights. Suggestions? I can understand 1 light not working, but all 3 at once suggests something different.