The wattsun trackers are not reliable and repairs are a real hassle. I have had to return my controller and sensor for repair six times in the last three years. The service department is obnoxious and will argue with you when you complain about the frequency of repairs. This year the tracker stopped tracking in the north/south direction and one of the manual switches was frozen. I sent it back for repair with a note as to the problems per the instructions of the service department. The service department ignored the note and just fixed the switch. When I got it back and installed it, it still wasnt tracking in the north/south direction. So, Ill have to return it AGAIN at my expense to get it repaired for a problem that should have been repaired the first time. Now, I wish I had purchased the Zome tracker.
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