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  1. HR92 shows hourly battery failure on controller

    One of my HR92s has started showing a battery low warning screen. When I check the faults page, there is often one battery warning approximately every hour (a minute or so different each time) yet...
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    I have a WB Greenstar 40CDI boiler, similar to...

    I have a WB Greenstar 40CDI boiler, similar to yours, and used to have continual cycling issues. Eventually I arranged for WB to install a later version main PCB, which reputedly (per internet...
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    Other thoughts - is the pump under-sized for the...

    Other thoughts - is the pump under-sized for the system or equally is the boiler under-sized, i.e. number of radiators @ various BTU ratings matching boiler output.
    If the boiler was under-sized and...
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    I run my condensing Worcester boiler at 70C flow...

    I run my condensing Worcester boiler at 70C flow temp (sometimes 72C when it's colder outside), so you could increase yours a tad.

    Also, is the sitting room one of the furthest rooms from the...
  5. Further to DBMandrake's detailed graph and...

    Further to DBMandrake's detailed graph and explanation, I did re-check the HR92 valve position which when showing 46%, the corresponding demand at the controller was 11% - perfectly matching the...
  6. Thanks DBMandrake for a comprehensive response,...

    Thanks DBMandrake for a comprehensive response, as always.

    I will check out your various suggestions tomorrow when can experiment some more.

    I did have the Kitchen/Conservatory originally set...
  7. Apologies for late response due to weekend...

    Apologies for late response due to weekend arrangements.

    Just checked again this morning with TRV showing 23C. Controller shows demand of 9%. HR92 shows valve position is 0. Kept checking for...
  8. Yes, the HR92 is set to display measured...

    Yes, the HR92 is set to display measured temperature. These temps show during the daytime, often when my wife is at work - and I don't do any cooking at all in the day.

    The kitchen is in an open...
  9. Strange regular 2C over setpoint temp reading on Kitchen HR92

    I keep getting a regular 23C temperature read on the kitchen HR92 when the setpoint temp is 21C. Wondering if the reading is being skewed because the radiator is a 2 metre tall vertical type?

    Any...
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    Just to complete the evolving picture re CS92...

    Just to complete the evolving picture re CS92 battery life - My batteries have lasted just less than 2 1/2 years since installation and are still going.

    I suspect the frequency of on/off set...
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    No I just wanted to make sure you had cleared...

    No I just wanted to make sure you had cleared previous bindings for the BDR91 before re-binding, otherwise you create multiple bindings.
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    You say you rebound. Did you clear all previous...

    You say you rebound. Did you clear all previous bindings before new bindings.
  13. Strange happening re zone comms fault when clearing fault notifications

    Yesterday I had a couple of comms faults on two zones - not that unusual given size of house. The controller was showing a little red exclamation symbol against these two zones which implied the...
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    Same thing happened to me, step son turned off...

    Same thing happened to me, step son turned off the ensuite HR92 and it threw me for a couple of days.

    But DBMandrake, you're saying be aware it (HR92) disables frost protect in OFF mode - surely...
  15. Also be aware that some rooms, if they are either...

    Also be aware that some rooms, if they are either without two or more external walls, tend to retain heat often above the set point. I have a house bathroom which is always the highest overnight...
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    Our house is 90+ years, double brick (no...

    Our house is 90+ years, double brick (no insulation). I set off/overnight temps at 10C but set Dining Room (when out of use) at 16C to minimise/avoid condensation from dble glazed windows.
  17. Yes I would have wanted more - at least 14 or...

    Yes I would have wanted more - at least 14 or more unless there is some sort of controller to HR92 limitation - I have 17 HR92s controlling 21 rads. Never mind the 3 sundry rads I left on manual.

    ...
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    Thank you for your inputs. It looks like my...

    Thank you for your inputs. It looks like my average for HR92 is also around 18 months but CS92A looks as if it's going to be 2 years.

    On some of my bedroom HR92s, I have had controller warnings...
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    Out of interest, can anyone say how long their...

    Out of interest, can anyone say how long their CS92A batteries (alkaline) are lasting?

    All Evohome HR92 valves I installed October 2015 have been replaced over the last few months (barring three...
  20. My QA "Away" setting is showing 15c and as I have...

    My QA "Away" setting is showing 15c and as I have never altered this, that must be the default. I normally turn CH "off" and switch DHW setpoints to off for holiday periods but I like the sound of...
  21. Thread: Installer Menu

    by killa47
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    Hi On the controller menu, press on "Settings"...

    Hi

    On the controller menu, press on "Settings" for 5 seconds, which will offer you the entry into System Settings etc. Options there include configurations, system devices, parameters etc.
  22. As DBMandrake said, removed Boiler Control, then...

    As DBMandrake said, removed Boiler Control, then cancelled Stored Hot Water, then re-input and bound Stored Hot Water (first the CS92 Sensor, then DHW Relay, then Heating Relay).

    Took a couple of...
  23. Ah cheers DBMandrake. That looks like a life...

    Ah cheers DBMandrake. That looks like a life saver. I had visions of a reset for all 12 zones plus system.
  24. Thanks for the recommendation. I have cleared the...

    Thanks for the recommendation. I have cleared the Boiler relay and selected "None" for the boiler control but I could not get the relay to stop flashing the usual variety of timed red lights.
    I...
  25. When I ordered the kit from EvohomeShop, Richard...

    When I ordered the kit from EvohomeShop, Richard marked the BDR91 as "Htg Relay" but I have just checked in settings and the recommended installer has set it up as Boiler Control. I did not do the...
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