Question about Grundfos Hardware & Accessories
Posted by Anonymous on
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Posted on Jan 02, 2017
Do you have more than one zone? If so, it is difficult to tell if the circulator in question is actually running. A trick is to get a screwdriver and place the metal end on the front of the circ and the other on your ear. You will hear it if it is running. If you do hear it, is the circulator itself very hot to the touch? If it is, it may be burnt out, or the zone needs to be bled of air. Another doubtful, but possible, answer is that the circulator is installed backwards. There is an arrow on it and it should be aimed towards the flow of water.
Posted on Dec 31, 2009
Check if you have an electric motorised valve in the pipe line. If this has failed then it would stop the hot water circulation. It should have a lever to manually open the valve as a simple check if it is working.
Posted on Feb 27, 2012
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