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Posted by Richard Spenrath on January 27, 2004 at 09:20:17:
My circulator is making more noise than ever. Now the circulator makes noise even when only 1 zone is active. If I throttle back the flow in that zone to a fraction of original the circulator quiets down. What are the signs of ciruclators that are failing? The circulator in question is just ahead of a tekmar 4 way manual mixing tee, could this be part of the problem? We are also at the present time experiencing extreme cold weather (-40) and the circulator (with relay start) zones both by house floor and garage floor. Do I have a circulator problem?
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