I'm struggling to get my lights working on my Rena tank its 8 years old, and I was running it with just one working light (there is 4). And that light stopped working,after i overfilled it (a mistake I have made only once in the last 10yearS) brought a new light and starter motor and tried each light separetly but none of them will work. What can I do now ? Any help greatly appreciated , thank you.