[APP][Pro] myVaillant - Comfort for your home

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222

Yes, it 's working again in v2.0.9! Thx

One thing i can’t get fixed, is the reading of all temperatures and water pressure. I’ve tried (almost?) everything already, anyone with golden tip? Is much appreciated.

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(It has worked in the past for a short period of time)

223

Strange that it is not working anymore. Some else had this issue before. For him it was resolved by rebooting the Vaillant gateway module. Just pull the power plug for a minute.

What kind of heating source do you have?

224

Done that already 10+ times

Also deleted all Vaillant devices as un/ reinstalled app several times with fresh new device setup (and fixing of all flows of device), working on Homey Pro (2026) with auto updates

Tried several different options with home internet router also

Only the outside and hot water tank temperatures worked till few months back, after that nothing… in the MyVaillant (Pro) app are temperatures and pressure always perfect visible

I’ve a Arotherm Plus 55/6 (installed 2024) with Vwl AI , Vr 940f and Vrc720 (no buffer, BUH or MEH), full electric with DHW tank

225

Working again. Many thanks for the quick fix! :+1:

226

Created a new test version 2.1.0. This versions includes the following changes:

  • Fix updating/triggering the wrong device (should fix the multiple circuits issue, not able to verify myself. @fomix could you verify this issue is resolved with version 2.1.0?)
  • Fix compatibility with VRC700 and SCF
  • Add the option the switch the cooling mode (when cooling available)

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227

I’ll verify somewhere next week.

Currently on holiday :wink:

228

2.1.0

I now have tap hot water temperature with my vrc700 :+1:

However my heating seems to be broken

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Thanks for the continued work :+1:

229

Did you ever see the heating zone temperature? I’m looking at the responses of the vrc700, often i see no room temperature reported. Is this correct?

230

The heating zone used to report the target temperature and allow me to adjust it (had mine set at 20c)

Now it looks like this..

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232

Tried to fix this in 2.1.1, not able to test this because I don’t have a vrc700. Could you verify this version solved the issue?

233

Version 2.1.1, also when i change the temperature on my thermostat it doesbe appear in homey.

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234

Many thanks @Pallieter for the quick fix — and for diagnosing the ALTCHA check Vaillant added, especially during holiday season. Can confirm: our VR921-based setup reconnected on Aug 1 after the update and the zone temperatures are updating nicely again after five weeks offline.

Two learnings from bridging that outage, in case they’re useful for others here:

  1. If the API ever breaks again: two Hue motion-sensor temperature readings near the thermostat zone turned out to be a surprisingly good stand-in. We calibrated fixed offsets against ~2 years of Insights history of the Vaillant zone temperature and smoothed with a simple EMA in HomeyScript, and used that “virtual thermostat” to keep our airco automation running. Now that the real thermostat is back we could validate it: mean deviation vs the real zone value is only ~0.15-0.2 degC (sd ~0.3) over the first two days.
  2. When comparing the Vaillant wall thermostat to other sensors: the difference is not a fixed offset. It swings roughly 0.3-0.7 degC either way with solar radiation and airco airflow — the wall unit responds to radiant heat and wall mass, air sensors to air temperature. Worth keeping in mind before “correcting” either of them.

Thanks again for keeping this app alive — it’s the backbone of our home climate setup.

235

Issue still exists. Do you need a diagnostic?

236

Since version 2.1.0 only the actual power and total consumption values are updated:

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VRC 720 and Arotherm Plus heat pump.

237

Diagnostic: c3d1ddec-858f-426d-92e3-f827bac9cba9

238

This logging id is not showing up in my logs. Did you restart the app after enabling the loggin?

239

Sent the wrong thing.

d0f538ee-64d7-4dfa-882b-27d85fcd1268

240

2.1.2 looks like it has fixed the issue. Many thanks, David

241

Hi @Pallieter
Just did a verification on the bug fix for setting the temperature with multiple zones.

When using the ‘set temperature’ card it works as expected.
However for the ‘set temperature for x hours’ the issue is still present.
Don’t recall if I tested this card when submitting the bug report though…

For the rest a repair fixed my connectivity issues, so many thanks for that!

Hit me up if you need some testing for multiple zones in the future.

242

Version 2.1.2 and 2.1.3 didn’t fix this issue. Do you need log files for this?