BDR91 RF Comms failures for both CH & DHW

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  • Drpepper
    Automated Home Jr Member
    • Jan 2015
    • 21

    BDR91 RF Comms failures for both CH & DHW

    All,

    My Evo Home system has been in since January and has been running great, doing what it does and saving me about 30% on our gas bill. The system has 13 HR92 spread across 7 different zones, in addition we have the how water pack. This morning I was awoken by a less than impressed wife informing me the shower was freezing and all the rads were cold.

    I did some initial digging and manually turning the HR92s activates the rad valves so eliminated those, also ran RF Comms checks ont he RF92s and all fine - comms checked the remote gateway too just for completeness, no problem, so starting thinking BDR91s may be the issue.

    In the cupboard that houses the Megaflo cylinder we have two BDR91s, one controlling the motorised hot water valve and one controlling the CH motorised valve. I'm thinking it's unlikely both valves have failed and the error log on the controller shows comms failure Thursday night at 22:10 (It's now Saturday AM). Whilst it did feel a bit chilly yesterday we had two hot showers in the AM so not sure how two hot showers Friday AM fits with Comms failure Thursday night unless it re-established comms.

    Anyway, I ran RF comms checks to both the BDR91s and nothing so I've think I've isolated the issue, now just need to fix it, I'm assuming the only way to do this is to attempt to unbind them, is there another way?

    I'm digging through manuals and forum posts at the minute as I believe there was a manual way to overide the motorised switches, key priority is getting some hot water and heat, can someone help me out there?

    As an aside I did see the detail about min 300mm gap between BDR91s whilst looking for answers, mine are next to each other so when the installer comes to service the new boiler (that went in at the same time) he can address that then also! I spoke to someone there earlier and they are going to get on of their EVO specialists to call me at some point but in the meantime any help would be appreciated.

    Any help greatly appreciated,

    EDIT:-

    I've moved the switch on the V4043 motorised switches to manual so hopefully there will be heat and hot water coming through shortly, still need to fix the comms issues though.



    Cheers,

    James.
    Last edited by Drpepper; 24 October 2015, 09:58 AM.
  • top brake
    Automated Home Legend
    • Feb 2015
    • 837

    #2
    Obtain new BDR91. Install as per instructions spaced apart. Rebind using guided configuration.

    The BDR91 have become weakened by incorrect installation position. You could simply try spacing apart but experience suggest they will need to be replaced.
    I work for Resideo, posts are personal and my own views.

    Comment

    • Drpepper
      Automated Home Jr Member
      • Jan 2015
      • 21

      #3
      Thanks, will put that one to the installer when he calls, there's enough room in cupboard for them to be 300mm from and pipes and each other so I'm not sure why they weren't though seems a fairly common error. Incidentally it does say on one of the BDR91s 'This receiver will not listen to other room units. Keep them as a pair" - I'm assuming that the 300mm still applies?

      In the interim is it worth me trying to rebind them anyway?

      No joy with water or heat despite setting the V4043 motorized valves from Auto to Open and cracking the HR92 values up so they open the rad valves, this is getting frustrating!
      Last edited by Drpepper; 24 October 2015, 10:42 AM.

      Comment

      • top brake
        Automated Home Legend
        • Feb 2015
        • 837

        #4
        You don't need to fix anything here. The installer does.
        I work for Resideo, posts are personal and my own views.

        Comment

        • Drpepper
          Automated Home Jr Member
          • Jan 2015
          • 21

          #5
          However in the interim if there's a quick fix, stuff I can try I'm more than willing, I'm not going to start taking stuff apart or anything daft but resets, configs, settings then sure, it's not like it can get much worse than no heat or hot water. Turned the Immersion on so hot water currently addressed and reverting to heating V1.0 (putting the kids in fleeces) :-)

          Cheers,

          James.

          Comment

          • top brake
            Automated Home Legend
            • Feb 2015
            • 837

            #6
            If the installation has been done by pro and you are waiting on a callback I would not recommend that you interfere with the system settings.
            Originally posted by Drpepper View Post
            However in the interim if there's a quick fix, stuff I can try I'm more than willing, I'm not going to start taking stuff apart or anything daft but resets, configs, settings then sure, it's not like it can get much worse than no heat or hot water. Turned the Immersion on so hot water currently addressed and reverting to heating V1.0 (putting the kids in fleeces) :-)

            Cheers,

            James.
            I work for Resideo, posts are personal and my own views.

            Comment

            • Drpepper
              Automated Home Jr Member
              • Jan 2015
              • 21

              #7
              Fair comment, really meant more around diagnosing than anything. Anyway it seemed odd both BDR91 stop responding, this coupled with no heat or water with valves overridden has led me to power issues as it's all, as I understand it, run from the boiler master wall switch.

              Sure enough seemingly no power at boiler, fuse in switch good, power room sockets by switch good so looks lie a boiler power issue (they also installed that).

              Installer phoned as promised and reached same conclusion, someone on way round to confirm.

              Comment

              • Dan_Robinson
                Automated Home Ninja
                • Jun 2012
                • 347

                #8
                Have you tried pushing the override buttons on the BDR's to get temporary heat.? Immersion heater for water?
                Kind Regards - Dan Robinson (Jennings Heating Ltd)

                Comment

                • Drpepper
                  Automated Home Jr Member
                  • Jan 2015
                  • 21

                  #9
                  Hi Dan, yes, they were dead completely, seemingly no power and nothing at the boiler either. Installer was here all afternoon trying to trace why, all of a sudden, the live feed to to the master switch had gone dead. We're none the wiser really, unless a connection has come loose on the feed, no other power issues anywhere in the house so can only be a direct feed which of course is in the partitions so fun to sort. Temp fix in place and everything functioning, further work to resolve on Monday.

                  Comment

                  • top brake
                    Automated Home Legend
                    • Feb 2015
                    • 837

                    #10
                    Originally posted by Dan_Robinson View Post
                    Have you tried pushing the override buttons on the BDR's to get temporary heat.? Immersion heater for water?
                    Welcome Dan!
                    I work for Resideo, posts are personal and my own views.

                    Comment

                    • Dan_Robinson
                      Automated Home Ninja
                      • Jun 2012
                      • 347

                      #11
                      Cheers bud

                      Interesting stuff in the API thread.
                      Kind Regards - Dan Robinson (Jennings Heating Ltd)

                      Comment

                      • top brake
                        Automated Home Legend
                        • Feb 2015
                        • 837

                        #12
                        Good news so no fault at all with the evohome.

                        Originally posted by Drpepper View Post
                        Hi Dan, yes, they were dead completely, seemingly no power and nothing at the boiler either. Installer was here all afternoon trying to trace why, all of a sudden, the live feed to to the master switch had gone dead. We're none the wiser really, unless a connection has come loose on the feed, no other power issues anywhere in the house so can only be a direct feed which of course is in the partitions so fun to sort. Temp fix in place and everything functioning, further work to resolve on Monday.
                        I work for Resideo, posts are personal and my own views.

                        Comment

                        • Dan_Robinson
                          Automated Home Ninja
                          • Jun 2012
                          • 347

                          #13
                          The one I always get is a lose neutral wire. Strange it happened after a period of time though.
                          Kind Regards - Dan Robinson (Jennings Heating Ltd)

                          Comment

                          • Fursty Ferret
                            Automated Home Sr Member
                            • Oct 2014
                            • 84

                            #14
                            The BDR91 have become weakened by incorrect installation position.
                            You've lost me, I'm afraid. Incorrect positioning can / does cause operational issues, but it can't damage the device.

                            Comment

                            • top brake
                              Automated Home Legend
                              • Feb 2015
                              • 837

                              #15
                              Originally posted by Fursty Ferret View Post
                              You've lost me, I'm afraid. Incorrect positioning can / does cause operational issues, but it can't damage the device.
                              In our experience it can.
                              I work for Resideo, posts are personal and my own views.

                              Comment

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