Problem: boiler on, valve is closed

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Ginopil
Posts: 17
Joined: 18 Jun 2020, 20:58

Problem: boiler on, valve is closed

Post by Ginopil »

Hi,

Context
  • Smart thermostat + smart valves configuration.
  • Thermostat is on firmware v75, valve is on firmware v89, relay is on firmware v228.
  • Comfort priority + heating prediction on.
  • Signal is excellent.
  • No error messages.
Problem(s): boiler going on and off again and again while valve stays closed.
App and website show a valve with the heating on. Thermostat shows the "a valve is controlling the boiler" message, boiler gets switched on, but the valve stays actually closed. Boiler can stay on for a while, eventually it gets switched off.
In combination with that, I see no apparent reason to get the heating goes on and off in the first place. E.g., target temperature is 19 degrees, the valve shows 19 degrees, but heating gets activated. When checking the web app, sometimes the temperature retrieved is 18.9 degrees. All that said, whatever the temperature, the valve stays closed and there is no actual temperature increase, nonetheless the boiler gets turned off after a while. :?
It goes on and off very frequently.

It's happening especially with a valve, but I noticed a similar erratic behaviour, occasionally, with other 3 valves.
Manual boost works fine, apparently.

Please, any suggestion/help? Thanks!
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