Quote:
Originally Posted by Tomit1
I dunno, but mine has been humming for 2 years. It is supposed to make some sound. Maybe if there are irregularities in the sound or it is simply loud it might be of concern.
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Ditto. There seems to be two schools- 1).replace it now and 2) Mine hums and it runs fine.
Mine is a hummer for over two years on two m117's- never had problems.