The chlorinator had been reading a good salt level but when I took it to have the water tested I was told my chlorine was low and that I should put it on 100% for 24hrs. I did this and the next day the SWG had no lights on the panel. I have previously replaced the fuse and power returned. This time I replaced the fuse and the SWG is still dead. How do I know if the actual Chlorinator needs to be replaced or if it is the motherboard? Because there is no power I am unable to test to see how many total hours the chlorinator has been in use.