I have an Evohome installation that has been causing me some trouble, the BDR91 used as boiler relay on a Combi system kept displaying comms error with slow flashing red light.
So I have followed all the advise do a signal check 5/5 and then move it, then move it again, again again etc etc about 12 times in different locations in the house, it would always work for a few days and then start flashing, all the time the system never missed a beat and kept working fine, and no errors appeared in the controller log or any errors for that matter.
In the end I decided to contact Resideo Support and they were really helpfull and said they have seen this issue with about 20-30 installations and they are trying to reproduce it in their lab , they suspect it is RF interference being received by the BDR91 probably by 2.4ghz Zigbee source (which might be true as I have 40+ Hue bulbs in my house ) which is triggering the error condition, they told me that as long as the system keeps working and there is nothing in the controller log then to just ignore the error light.
Of course as the signal strength is always 5/5 this issue is not easy to predict with a pre instal survey even if you test using a test rig such as the one Richard at the Evohome shop rents out.
They think it should be resolvable by a patch update but are not sure when this will be available.
Just thought I would share in case anyone else has finds the same issue.
Mark
So I have followed all the advise do a signal check 5/5 and then move it, then move it again, again again etc etc about 12 times in different locations in the house, it would always work for a few days and then start flashing, all the time the system never missed a beat and kept working fine, and no errors appeared in the controller log or any errors for that matter.
In the end I decided to contact Resideo Support and they were really helpfull and said they have seen this issue with about 20-30 installations and they are trying to reproduce it in their lab , they suspect it is RF interference being received by the BDR91 probably by 2.4ghz Zigbee source (which might be true as I have 40+ Hue bulbs in my house ) which is triggering the error condition, they told me that as long as the system keeps working and there is nothing in the controller log then to just ignore the error light.
Of course as the signal strength is always 5/5 this issue is not easy to predict with a pre instal survey even if you test using a test rig such as the one Richard at the Evohome shop rents out.
They think it should be resolvable by a patch update but are not sure when this will be available.
Just thought I would share in case anyone else has finds the same issue.
Mark
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