Same here! Rolled back to 2024.12. 5.
Hello
You have to install the latest version for it to work again.
https://github.com/signalkraft/mypyllant-component/releases
After the mentioned errors also updated tot the latest version. Working fine. Looking at it today it seems off-line and error says:
This error originated from a custom integration.
Logger: custom_components.mypyllant.coordinator
Source: helpers/update_coordinator.py:411
integration: myVAILLANT (documentation, issues)
First occurred: 00:35:30 (7 occurrences)
Last logged: 13:54:15
Error fetching myVAILLANT data: myVAILLANT API is down, skipping update of myVAILLANT SystemCoordinator for another 10800s
So why is this occurring? Any solution?
I’m trying to install the integration for the first time, tomorrow they are installing a VR940F on our EcoTec Boiler, and the download from HACS works okay, however if I try to install the integration afterwards I run into a HTTP-Error 500
“Config-Flow could not be read”.
Had the same issue after updating to Home Assistant 2025.1.0
You need to update to the latest version of myvaillant, still in pre-release.
That fixed it for me.
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Hi, I have a Vaillant air conditioner but I control it via the ewpesmart app and I wanted to know if it could be integrated in some way. Thanks in advance to anyone who answers. Thanks
How can I do the update to a pre-release?
Hi, communication with Homeassistant is by mqtt right? Entities are added with autodiscovery or you had to add it manually? Wich entities are available?
I just added the vaillant Integration, and about 40 entities were here. Nothing added manually … so I don’t know if mqtt or not
But I changed the seconds between data refresh to 300 and now it works…
Yes communication with HA is MQTT.
It’s not as easy as using the integration. First you need:
a running ebus Adapter, and you have to install the ebusd (as HA AddOn or docker on separate system).
Than you need a configuration for your heating system. There are some predefined configuration files. But for my heat pump I had to change and add some configurations. ebusd configuration is a hard thing. A lot of help is possible by some very friendly guys at ebusd GitHub.
First I started with the HA auto discovery mechanism. You have to define filters to include / exclude the entities needed in HA.
But for me it was very painful to get only the entities I really needed in HA.
So I disabled auto discovery and defined the MQTT entities by hand.
To get an overview which entities will be available, best way is to have a look at the GitHub ebusd-configuration/ebusd-2.1.x at master · john30/ebusd-configuration · GitHub.
I am using the fork on ebusd-configuration/ebusd-2.1.x at master · jonesPD/ebusd-configuration · GitHub.
With my aroTherm and sensoComfort I get all entities needed to monitor and control. A lot more than provided by the integration.
And because it is local, its rock solid and stable from the first day I get my configuration running.
But don’t under estimate the time to get all running.
2 Likes
I have our 5kW Arotherm+ loaded into HA (I’m a complete HA noob) via this wonderful integration and would like to create my first rule that changes the the weather compensation curve depending on the outdoor temperature. The curve is not steep enough and I want the curve to be reduced during warmer weather (something like 0.6 at above 10C) and increased when it’s colder( 0.75 at below -3C). Can I do this with the help of this integration? Any tips on how to start doing this?
changed back to 1200 Seconds because currently it does not work anymore…
Hi,
I am running the myVAILLANT integration with an Arotherm heatpump. I am trying to have the temperature of the heating buffer (200l) shown in HA.
Does anybody know if the system_flow_temperature attribute in the firmware entity does represent this? Or which other temperature this is providing?
From comparing to the values in the Vaillant display I am not really certain.
I would also be interested in this value, but I never found it. Neither by API nor via ebus.
The reason for that is simple: the buffer does not have a thermometer. I can’t find any wires going to the buffer nor can I find any mentioning of a thermometer in the installation manual.
Maybe, I attach some thermometers externally to the water pipes.
Create two automations, one for warm days and one for cold days:
alias: Lower Heating Curve
description: ""
triggers:
- trigger: time
at: "09:00:00"
conditions:
- condition: numeric_state
entity_id: sensor.my_home_outdoor_temperature
above: 10
actions:
- action: number.set_value
metadata: {}
data:
value: 0,6
target:
entity_id: number.my_home_circuit_0_heating_curve
mode: single
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Hi Robert,
I cannot confirm this for my installation. I do have a heat sensor installed and can read the value from Vaillant’s management console (in the config for the installer pretty much at the bottom of the list there is the buffer shown and it does show the current temperature if you open it).
I assume this is also necessary to use the +10K (I did increase to the max. of 15K uplift) extra heating which you can also activate via the myVaillant app.
From HA I did not find a way yet. I do trigger it either manually via the app or via the SG-Ready link of my Huawei EMMA to the heat-pump.
But of course would prefer to integrate all in HA.
system_flow_temperature is the temperature which leaves the heat pump. the hydraulic station (the threewayvalve) then may send this water into the heating or the warm water buffer.
As our heating is currently disabled, it’s only warm water:
in winter we can see heating and warm water alternating:
In winter the temperatures <30° are water for the heating circuit, the temperatures >30° are water for hot water.
As currently we have our heating disabled, the heating buffers temperature is nearly constant:
The spikes are the overheating, as we had a very sunny spring, it was nearly constantly overheating (via SG Ready). But this temperature is (afaik) not available in the API.
Here is the threewayvalve alternating between heating and warm water:
Here it’s shown, that the valve does not send water from the heat pump into the heating circuit, it always points to warm water.
I’m not aware of a method to invoke Arotherms SG Ready program via software. But I can trigger my solar inverter via HA to send the SG ready signals (recommendation, force, lock, …).
did you find a solution for this? I’m seeing the same thing, i get perhaps one reading every three days which is basically useless…
Hello pdd Philipp,
The “quick_veto_end_date_time:” attribute of the “climate.my_home_zone_1_circuit_0_climate” entity no longer goes back to the end time predefined in the controller after changing the desired temperature, but the time of the shutdown (when stopping with “Cancel quick veto”).
Could you correct that?
Thank you
I did some tests and on the vO_9.Ob2version the time was displayed well but with 2 hours less or 13h instead of 15h