Boiler switched on with all valves closed

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gbragante
Posts: 12
Joined: 28 Oct 2018, 21:49

Boiler switched on with all valves closed

Post by gbragante » 28 Oct 2018, 22:01

Hello,
I only have the Netatmo thermostat for less than one month.
It happened a few times that a valve is supposed to trigger the boiler, the boiler switches on but the valve remains closed.
This condition lasts forever because the valve will never reach the set temperature if it is closed. And in the meantime the boiler keeps heating the water without circulating it into the radiators.
The only way to get out of this condition for me is switching of the relay.
Has this happened to somebody else?
Thanks
Gianni

tuxbox
Posts: 45
Joined: 07 Oct 2014, 08:45

Re: Boiler switched on with all valves closed

Post by tuxbox » 28 Oct 2018, 22:43

Hi,
what firmware versions do you have on your devices? Have you tried recalibrating the valves?
Greetings,
Frank

gbragante
Posts: 12
Joined: 28 Oct 2018, 21:49

Re: Boiler switched on with all valves closed

Post by gbragante » 29 Oct 2018, 08:14

I have firmware 189 / 69 / 66
Re-calibrating the valves does not resolve the issue

schmaker
Posts: 48
Joined: 11 Oct 2018, 18:04

Re: Boiler switched on with all valves closed

Post by schmaker » 29 Oct 2018, 19:04

I did experienced similiar issue. It was mechanical / calibration issue. Netatmo promised firmware with calibration fix within few weeks, but i fixed it with replacing mechanical valve on the radiator.

https://forum.netatmo.com/viewtopic.php?f=73&t=14678

gbragante
Posts: 12
Joined: 28 Oct 2018, 21:49

Re: Boiler switched on with all valves closed

Post by gbragante » 29 Oct 2018, 21:19

If it was a mechanical issue how do you explain that I can fix it by power cycling the relay and without touching the valve itself?

schmaker
Posts: 48
Joined: 11 Oct 2018, 18:04

Re: Boiler switched on with all valves closed

Post by schmaker » 30 Oct 2018, 17:08

That depends - it solves boiler heating or valve closing?

gbragante
Posts: 12
Joined: 28 Oct 2018, 21:49

Re: Boiler switched on with all valves closed

Post by gbragante » 30 Oct 2018, 21:26

It has not happened again but power-cycling the relay resolved the problem that the boiler was swtiched on without the valve being opened

schmaker
Posts: 48
Joined: 11 Oct 2018, 18:04

Re: Boiler switched on with all valves closed

Post by schmaker » 31 Oct 2018, 19:33

Guess that is different issue then

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