I came home today and started hearing an iritating humming sound coming from my FM 1200 water softener. What could it be and how do I stop it. The system is 20 years old and I may have had it repaired or even replaced at one time.

Asked by Sean Whinnery on 09/30/2010 1  Answer

ManualsOnline posted an answer 14 years, 1 month ago

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