Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Thermostats, Volumi...
MyVaillant Connect ...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

MyVaillant Connect Regular Disconnect

 
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Last Post by buckwem 10 months ago
3 Posts
2 Users
2 Reactions
1,430 Views
RSS
 buckwem
(@buckwem)
New Member Member
Joined: 1 year ago
Posts: 2
Topic starter 21/12/2025 12:41 am   [#2679]

A couple of weeks ago the MyVaillant Controller had a red light error and now many nights around 11pm UK time it does the same. It’s a problem because Havenwise then can’t talk to it to make adjustments.

I can tell from UniFi and pinging from Home Assistant that the controller is still connected to the network.

I then installed the Home Assistant HACS extension for Vaillant and it shows the controller permanently disconnected. So I can’t detect any outage that way. I was thinking I could put switch power off/on if I could detect it’s offline. I may have to get an ebus adapter to read the controller directly.

I raised a ticket via Vaillant technical support on their website and they said raise a ticket via the app. I have done so and so far they have asked me to reconnect the controller via WiFi. I did that but it’s happened again tonight. I wonder if it happens at exactly 11pm as that would be midnight in Europe.

It’s been working for four months and it suddenly starts misbehaving. The controller is connected to a 2.4Ghz only WiFi that is set to IoT mode with a fixed IP for the controller. Havenwise has been used all this time.

Has anyone seen this before or got any ideas? I have to remember to power off/on the controller every night at the moment.



   
👍
1
Quote
Majordennisbloodnok
 Majordennisbloodnok
(@majordennisbloodnok)
Famed Member Moderator
Joined: 5 years ago
Posts: 2193
21/12/2025 4:51 pm  

Sadly, if the gateway is still responding to pings on the network then I suspect there’s little to do. However, is it perhaps worth plugging the gateway into a smart socket simply to power it off and on again at about 11pm every night? I know it might sometimes be unnecessary, but do you feel you have to detect it’s down before restarting it?

Obviously a bit of a cludge but worth a thought.


105 m2 bungalow in South East England
Mitsubishi Ecodan 8.5 kW air source heat pump
18 x 360W solar panels
1 x 6 kW GroWatt battery and SPH5000 inverter
1 x Myenergi Zappi
1 x VW ID3
Raised beds for home-grown veg and chickens for eggs

"Semper in excretia; sumus solum profundum variat"


   
👍
1
ReplyQuote
 buckwem
(@buckwem)
New Member Member
Joined: 1 year ago
Posts: 2
Topic starter 21/12/2025 7:35 pm  

Thanks. Yes, if the time is consistently 11pm every night, then my plan was to use a smart socket to power off/on every night. I have my phone alarm set to remind me to check at 11pm to see if it happens exactly then.



   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO