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Hot water current temperature is 0

Open en-ver opened this issue 2 years ago • 10 comments

In HA hot water current temp is 0 while I can see the correct temperature from the service menu on my boiler (Buderus Logamax U072) Please advise how to fix it image

en-ver avatar Dec 09 '21 12:12 en-ver

Hi. Do you have a single or double boiler? For single-loop, you need to edit the library OpenTherm.h Tr, // f8.8 Room temperature (°C) Tboiler, // f8.8 Boiler flow water temperature (°C) Tstorage, // f8.8 Solar storage temperature (°C) Toutside, // f8.8 Outside temperature (°C) Tret, // f8.8 Return water temperature (°C) Tdhw, // f8.8 DHW temperature (°C)

IvAn-72 avatar Jan 14 '22 09:01 IvAn-72

@IvAn-source-git it's single-loop Where this file is located? I can't find it in ESPHome-OpenTherm folder. Please advise.

en-ver avatar Jan 14 '22 13:01 en-ver

ok, from your repo I understood I simply can download it to my RPI and change it there. but what exactly do I have to change there?

en-ver avatar Jan 14 '22 16:01 en-ver

Take everything from my repo. A lot has been fixed for our boiler (U)72 and Gaz60000)

IvAn-72 avatar Jan 14 '22 20:01 IvAn-72

@IvAn-source-git what do you mean with a single or double loop? I have a Bulex Thermomaster 28F, for heating and hot tap water production. Is this the double loop?

bartmarchand1 avatar Jan 19 '22 08:01 bartmarchand1

The single-circuit boiler works with an indirect heating boiler for the preparation of hot water (for house). The double-circuit boiler produces hot water immediately (for appartement).

IvAn-72 avatar Jan 19 '22 09:01 IvAn-72

For single-circuit boilers with an indirect heating boiler, the boiler outputs the DHW temperature in ID29. There may be easier solutions, but I just changed "ID=26: DHW temperature" and "ID=29: Solar storage temperature"

IvAn-72 avatar Jan 19 '22 09:01 IvAn-72

@IvAn-source-git it didn't help

In addition, I found out that some other data is also absent image

en-ver avatar Feb 01 '22 14:02 en-ver

As you can see there is definitely incorrect data for:

  • external temp
  • water pressure
  • return temp I'm not sure if it affects anyhow the PID operation but I would love to get it working :) Please advise! :)

en-ver avatar Feb 01 '22 15:02 en-ver

Уже писал. Берите всё с моего репо. Все котлы разные, со своими датчиками. Мой котел не передает внешнею температуру, давление, температуру обратки, соответственно эти запросы отключены.

IvAn-72 avatar Feb 01 '22 15:02 IvAn-72

Probably fixed by #52

rsciriano avatar Oct 21 '23 17:10 rsciriano