Are the service entrance conductors Al? I have had many calls for this, when al conductors are used and no antioxident is applied poco insists every thing is Ok. Etc. Found nutreal to be pitted with that white corrosion. Seems when the load gets to a certain point of unbalance the lights would dim. But intermitant. Sometime rfer would do it other times the washer,a/c etc. Very tricky to figure out. I spent alot of research time at the first one. Now I know were to go. [Linked Image]

Phil

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