Very unreliable thermostats

andreaspossible

October 26, 2025 07:24
6 comments

Dear all, First of all, I haven’t could find any support mail for Netatmo(!) very confusing site… So I try inhere instead. My review of this thermostat system is very bad! All my thermostats are very unreliable, from time to another the thermostat(s) are not calibrated, and then heat the rooms up, so tonight I woke up 03 at night because there was 32°c inside our bedroom because the thermostat was not calibrated and then it opened full up for the valve.. All of my thermostats do this several times at a day, and my confidence to this system is not existing unfortunately. I had the system for 3 years and it has been the same since i installed it. And specially in the winter periods of course. If I just could get some push notifications that some of my thermostats are not calibrated it could help a little bit. I’m running iPhone with newest iOS firmware. I’m ready to throw it directly in the garbage, then i don’t save anything if the thermostats is not calibrated and I’m not home to fix it. Please let me know what Netatmo thinks I should do? Thanks in advance.

Comments

6 comments

grupoenea
- October 27, 2025 23:27
Last weeks it’s impossible to connect them more than 1 day. It’s a headache.

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grupoenea
- October 27, 2025 23:29
I think it’s the moment to change the thermostats with another trademark. Do you know which trademark is the most reliable?

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tonyegar
- October 28, 2025 11:40
Batteries.in my thermostat are being used up very quickly. Please help!

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andreaspossible
- October 28, 2025 14:53
Wow to see more people effected by this issue… I’m currently looking into Tado system specifically Tado X series. I know that some of the features are payable, but if it’s more reliable than Netatmo that’s fine with me(!)

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lastfabio
- November 06, 2025 17:23
It's not possible to set the "true temperature ", this function doesn't work at all.

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samo.zelko
- January 25, 2026 14:22
To me happens the same, one of the thermostat just opens the valve on full, december happend like 4 x and in january, in few days 2x. I tried different batteries, not the cheap ones, nothing. It's becamming unstable, not safe and dangerouse. Everytime I was home, was lucky. Sometimes even callibration doesn't fix. Thankfully have old manual thermostats. But f*ck Netatmo's wasn't cheap ones, but this is crazy.
Did anyone get resolve this issue self or with Netatmo Help?
If the're not working as it should, I can't even sell it forward to anybody and buy from other company. This sucks

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