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  1. No settings will be lost by rebooting the...

    No settings will be lost by rebooting the controller. It will take a while before all zones are showing temperature readings however - typically around 30 minutes. The red warning LED's on the boiler...
  2. I would try rebooting the controller first. Just...

    I would try rebooting the controller first. Just pop the battery out for a few seconds while it's off the charging stand.

    It will take a while for the other devices to sync with it (more than 30...
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    For a single-room zone all the HR92's in the zone...

    For a single-room zone all the HR92's in the zone will display the same temperature measured by the one sensor in the room whatever it is. There is a transmission delay of a few minutes so the...
  4. Got it to work, however I had to make changes to...

    Got it to work, however I had to make changes to one of the lua block files before it would work. See my post on the linked thread. Luaradio and the necessary dependencies are quite some work to...
  5. I could easily use an online weather service...

    I could easily use an online weather service using pywapi - I already use this in my evohome-munin graphs to get the local forecast temperature, and it's literally about 5 lines of python, however...
  6. Thanks, that looks exactly like what I'm looking...

    Thanks, that looks exactly like what I'm looking for! :)

    I'll report back if I get it working.
  7. A quick question for those using custom receivers...

    A quick question for those using custom receivers for decoding the Rameses protocol - does anyone know the feasibility of using an RTL-SDR (generic software defined radio) to receive and decode the...
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    If the system is that vulnerable to "RF signals"...

    If the system is that vulnerable to "RF signals" or interference in such a way that it would cause an override, then the over the air comms is pretty shoddy and would lack even a CRC.

    Fortunately...
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    Since the hourly check-in time goes from when the...

    Since the hourly check-in time goes from when the batteries were inserted in the HR92, and any HR92 in the zone could trigger a phantom override and the controller then propagates it to the others,...
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    Then what you are experiencing is the infamous...

    Then what you are experiencing is the infamous "Phantom override", where the set point can get reverted to the previous one in the schedule a few minutes after a set point change.

    Search the forum...
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    Is 16C the previous set point for the zones in...

    Is 16C the previous set point for the zones in the schedule ?
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    I'll assume then that nobody here has any first...

    I'll assume then that nobody here has any first hand experience with Lightwave Heating controls ? ;)
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    Lightwave room temperature sensors ?

    Asking for a friend...

    Does anyone know whether a room that has a Lightwave radiator controller valve can have one of their room sensors "linked" to the zone to be a remote sensor for the radiator...
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    I've had Evohome for a year without Loop and two...

    I've had Evohome for a year without Loop and two years with Loop now and I can't say I've noticed any real difference in problem rate with Evohome. I have had occasional comms issues before and...
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    Some things are periodically resent, some are...

    Some things are periodically resent, some are not.

    If you make an override directly at an HR92 it sends a set point change to the controller within a few seconds - and every hour (counting from...
  16. If it's for a wired sensor it doesn't help me...

    If it's for a wired sensor it doesn't help me much - there is no good location to mount a wired sensor within reasonable cable reach of my boiler to get a proper outdoor measurement, (just sticking a...
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    Hmm.. No, the controller only sends set point...

    Hmm..

    No, the controller only sends set point changes to HR92's when there is a change in set point. Additionally identical set points in a row do not send out redundant set point changes.

    So...
  18. If the valve body is leaking get it replaced...

    If the valve body is leaking get it replaced pronto before the leak gets bad enough to damage the HR92. If the pin has gone rusty it will be starting to seize, which would explain the valve not...
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    Evohome is notorious for poor battery...

    Evohome is notorious for poor battery connections. You need to re-tension the battery contacts. The contacts are (probably, in my opinion) made of chrome plated mild steel rather than using proper...
  20. This is exactly the problem though - Evohome...

    This is exactly the problem though - Evohome doesn't currently support this. If you connect an OpenTherm boiler with weather compensation to an Evohome system, weather compensation is disabled and...
  21. Yes, I'm aware that the OpenTherm protocol allows...

    Yes, I'm aware that the OpenTherm protocol allows a boiler to send an outdoor temperature reading back to the thermostat, however the question was whether Evohome in particular will do anything with...
  22. That's the theory, but there's lots of reports on...

    That's the theory, but there's lots of reports on here of that not working, with many boilers simply disabling/ignoring the input from the outdoor temperature sensor when connected to an OpenTherm...
  23. On the software side I plan a simple, plain...

    On the software side I plan a simple, plain "evohome style" user interface written in Python probably using guizero/tkinter. Nothing fancy just big finger sized buttons with a simple click interface....
  24. Raspberry Pi OpenTherm Weather compensation project

    Those of you who follow my long rambling posts know I occasionally like to go on about the theoretical "ideal" world of combining OpenTherm control from Evohome with Weather compensation based on...
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    Take one apart to see how it goes together and I...

    Take one apart to see how it goes together and I think you'll change your mind about it being "a very simple and cheap engineering change".

    There are all kinds of butt seams with click latches...
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