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Depends what your precharge pressure in your expansion vessel is. I have a calculator that works it all out. At 65oc flow temp, with an expansion...

Hmmm, Munin sounds much better than Domoticz BUT I don't speak Linux, have never looked at Python and already have enough things on the todo list to...

Evohome-munin is a python plugin for the monitoring/graphing software Munin. Although I didn't write it originally I've been defacto maintaining...

It seems fortuitous that I opted for a Sandisk 32Gb card. Although I like Domoticz I'd thought it would enable detailed info for a period to be...

Sounds like you had a faulty unit.

The best thing to do is buy high quality SD cards and of reasonable size if you want reliability and longevity. The write endurance difference...

To follow up on this. I bought another HR92 Placing it next to the horizontally mounted existing HR92 (wedged between it and the wall) its readings...

Ah right. So let me supply a proper code fix back to Domoticz that deals with 0C and -ve temperatures. But atleast now, I have enough evidence that...

:/ I'm fetching the beta directly from github, so I'm not compiling locally :(

Your OT is returning the proper data. Could you please do this for me. Edit the file hardware/EvohomeRadio.cpp search for //SendTempSensor(27,...

Yup, sounds about right :)

OK, but is 14.84C about right in terms of outside temperature for you now? That's what the 0E D8 translates to.

Actual temp on the boiler is 14.5C

Just had a heating engineer visit. Very much looking like a pump, not fan related issue. They believe one of the main 22m supply/return pipes is...

Yup, everything is now properly reported. External Temperature reading seems to be quite off though. New value: 2021-03-01 14:41:40.977 Status:...

To me that seems odd. The fan is doing a different job and is not needed when the pump alone is on. Mine certainly isn’t. The fan is needed to...

The new code needs to first detect that you have an OTB in your system. That process can take a few minutes, but once it detects an OTB, it will...

Done for the upgrade to latest beta. Pending for the missing data, seems that the data is coming back online (but slower than every 5 mins) I've...

If you have access to the latest Domoticz Beta, could you please download and run that. Confirm that all your OT devices that had stopped updating...

I do :) Boiler is Perfinox 4100, is reporting the external temperature on the system itself. It should respond to regular OT request, as the...

Our pump is integral to the boiler, and the fan appears to be directly linked to the pump speed.

The problem with mine I think is the fan speed is directly related to the pump speed, and when the pump is on the fan is on! Got Ideal visiting today...

Mine does not fire up during an overrun, but that would defeat the object of the overrun, as you say, it should be off. My pump though is frequently...

It does have a serial com port on the front under the perspex cover. I think I might even have the cable for it that I got with it.

I don't think Honeywell actually allowed firmware upgrades on any of their heating systems.