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My understanding is that the units "self-monitor" and that when a huge enough surge has happened then it blows out the surge suppressor (which has done its job, protecting your equipment when the surge happened). If it is happening for this reason, then it is NOT a failure of the unit, AND the unit needs replacing. I believe that the most probable reason for your units lights going out is the above reason; however, they can also go out for other reasons, including 1) wiring fault in the circuit you were using it on (less likely unless someone's been messing with it), 2) the load in the circuit you are using it on has changed (perhaps become overloaded), 3) the plug from the surge suppressor to the wall isn't quite in firmly enough (also probably not as likely, but it can happen), 4) If the unit was defective -- but if it used to work for a while before, so therefore I am thinking this may be less likely.
Sorry, there was a problem. Please try again later.Yes, the unit is no longer protecting your gear. I had the same problem and replaced mine.
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