Buderus logamatic controls making a constant clicking sound

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Old 03-09-13, 05:55 AM
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Exclamation Buderus logamatic controls making a constant clicking sound

We have a Buderus/Logamatic radiant system with a total of 4 thermostats. It's' setup using a standard Rh/W1 wiring scheme.

After installing 2 nests to test them out, everything worked great. We added a third two days ago, and everything is still functioning perfectly, however this morning I noticed the logamatic controls are clicking every 5-10 seconds and an upsidetown triangle comes on/off (in-sync with the clicking sound)

At the time its clicking no zones are calling for heat, the furnace isn't running and no circulator pumps are running. The only thing happening is the logamatic controls are making a clicking and showing a traingle (but I do not believe this is an error code, but I can't find any information what this icon means in any manuals or online)

Video here: Buderus logamatic clicking - YouTube

Any help/suggestions would be greatly appreciated.

For all I know this is OK, but I just cant find out what that triangle means..
 

Last edited by NJT; 03-09-13 at 08:21 AM.
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Old 03-09-13, 08:55 AM
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I would say first to drop back... reinstall the old t'stat and see what happens.
 
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Old 03-09-13, 09:01 AM
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Page 6 tells us that the triangles indicate 'mixing valve open/close'

http://s3.pexsupply.com/manuals/1252..._PROD_FILE.pdf
 
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