Load Scaling isn't and shouldn't be an everyday operation
Wow, I really don't like the sound of that. There must be a way to bypass the original wireless thermostat in the future...you don't want to be relying on it especially if it is battery powered.
My suggestion would be - use the app to turn your heating back on to its normal schedule for example using day off mode and leave it like that for a few hours to see if it warms up or whether there is no change. Better to use a little bit more gas than have freezing pipes if you're unsure if there is a fault.
I don't know what temperature differential you're referring to here. Away mode is just a set point like any other and doesn't behave any differently.
When my firmware updated load scaling was off by default - I had to go in and manually enable it, so I doubt this has happened. As far as I know all the new user configurable features in 19.33 are off by default but someone can correct me if I'm wrong.
I have only had 19.33 for about ten days,load scaling was off.
I know, but from what I understood the previous owner of the house put this wireless module in the boiler in substitution of the original one (which they didn't keep). This module has also all sort of other controls for enabling hot water, heating, etc., so I can't just unplug it. So, even if the hardwired switch still works, it is in an AND configuration with the wireless one.
Big lesson learned here, plus some good old Murphy law applied: I need to move the old wireless thermostat in a place where I can see it instead of keeping it in the loft or I won't know when batteries are low. Obviously it happened while I was away, probably batteries were near the limit and with the colder temperature they just gave up.
I tried that the other day -nothing. I have even checked the smart meter readings and there is no gas consumption, so boiler is not firing up.My suggestion would be - use the app to turn your heating back on to its normal schedule for example using day off mode and leave it like that for a few hours to see if it warms up or whether there is no change. Better to use a little bit more gas than have freezing pipes if you're unsure if there is a fault.
What is odd, checking on the smart meter, is that I have some more power consumption since this issue started, I went from 4.1kWh/day to 5.7kWh/day. Now I have switched off the heating (well, switched off the relay is more precise...) for a few hours and tomorrow I should be able to see on the smart meter readings if this excess of power is due to this situation. I'm down to 7.5 degrees as lowest temperature, hopefully the coldest days are gone and it should remain above zero, according to forecasts...
This is why I am not a massive fan of the Frost Protection settings in Evohome. By the time a room in the house has reached 5C, pipes under the floor and unheated areas are way lower than that.
This is why I used to have a HRxx valve in the loft which wasn't connected to a radiator. This would trigger the Frost protection in advance of the rooms.
Well, I have arrived a couple of hours ago in a very fresh house. Mystery solved: boiler was blocked with a fault. It´s Worcester Greenstar, code was F7, which is Ionisation detected before burner start. Never had any error in the past year... After a reset it has restarted and it's warming up. I'll see if it does it again, but I was wondering if the new evohome could have something to do with it. Before, the heating was switching on and off relatively few times a day, now I can hear the relay switching on and off the boiler quite often, and in more than one occasion without a clear idea of what is triggering the switch on.
Did anyone experience any similar issue?