Fan not keeping set speed about ithowifi HOT 14 CLOSED

Clear, thanks. I can manage with the vremote commands, so no problem.

from ithowifi.

If your fan returns to another speed than set by a speed command, the command is being overruled by something else. This could be another command, remote device or internal Hum or CO2 sensor.

from ithowifi.

That was what I was thinking at first too, but would it also lower the fan speed?

from ithowifi.

Other remotes are not being used, nor is another command being sent to the add-on, so it can only be humidity or co2 that is overruling it. Any way to be sure?

from ithowifi.

some input is changing the speed. Most of the times it is a persistent MQTT topic or something else.
What does http:://[your add-on ip]/api.html?get=lastcmd show as output?

from ithowifi.

I see you mentioning CO2, what kind of CO2 sensor are we talking about?

from ithowifi.

The itho/lastcmd topic shows just my last command. The CO2 I'm talking about is the build-in one.

from ithowifi.

Have you read this on the product page?

See for more information also the wiki on this github:
https://github.com/arjenhiemstra/ithowifi/wiki/CO2-sensors

from ithowifi.

Yes, did see that, but may have misread it, looking at it now ;-)

I read it as if the CO2 would overrule any commands in case CO2 became too high, but I reckon it overwrites them always, right?

from ithowifi.

yep, every 30 seconds or so. A (virtual) remote command low will overrule the CO2 sensor.

from ithowifi.

Okay clear, but then the speed command still doesn't work, or does it then?

from ithowifi.

not persistent because the co2 add-on inside your itho itself sends a speed command every time

from ithowifi.

If you have suggestions to make the explanation more clear, feel free to suggest an edit!

from ithowifi.

Maybe add a short explanation and change:

The I2C to PWM protocol is overruled by the CO2 sensor. Virtual remote commands work as expected.

To something like:

The I2C to PWM protocol is overruled by the CO2 sensor, meaning it is not possible to persistently set a different fan speed, as it is overruled by the CO2 sensor. Virtual remote commands, such as 'low', 'medium' and 'high' do work as expected.

from ithowifi.