Fan entity off | Home Assistant | Page 1

golden willow Apr 7, 2026, 11:36 AM

#

So

#

#

So 1 concern is that we show the off button, while it can't be turned off. In reality this just sets the fan speed to 0, but that's not a possibility

#

I will check other integrations on how they do this, because TURN_OFF is a supported fan feature, so then the question becomes "if it doesn't support TURN_OFF, should it support setting the fan speed to 0?"

#

The main concern right now is that preset modes are said to be automatic control. So if you select a preset mode, that means the manual control doesn't apply, and when you then do manual control again, it disabled the preset mode

#

Hold up I now see something in the FanEntity class that might help

pallid dome Apr 7, 2026, 11:42 AM

#

Speed = 0 = no rotation/activity? That feels like a turn off.
Why can't it turn off? In the sense, the power stays on a little, or there is still rotation/activity?

golden willow Apr 7, 2026, 11:43 AM

#

pallid dome Speed = 0 = no rotation/activity? That feels like a turn off. Why can't it turn ...

Probably mechanical ventilation, I had the same in my appartment

#

it just can't turn off

pallid dome Apr 7, 2026, 11:44 AM

#

But that means there's always some activity/rotation? Or some sort of standby modus?

golden willow Apr 7, 2026, 11:47 AM

#

yes it's always on

#

Like in my apartment I couldn't open my windows, so if it stopped I wouldn't have fresh air

pallid dome Apr 7, 2026, 11:56 AM

#

golden willow Hold up I now see something in the FanEntity class that might help

What's the insight? 😀

golden willow Apr 7, 2026, 11:56 AM

#

    @property
    def is_on(self) -> bool | None:
        """Return true if the entity is on."""
        return (
            self.percentage is not None and self.percentage > 0
        ) or self.preset_mode is not None

#

He overwrote is_on, but even if a preset mode is selected, it should stay on

vestal osprey Apr 7, 2026, 12:00 PM

#

I have an ESPhome one for controlling the ITHO in-house fans which just maps 0 back to 1 (or something like that)

golden willow Apr 7, 2026, 12:01 PM

#

hehe yea I know that one

vestal osprey Apr 7, 2026, 12:01 PM

#

Same thing, you can't turn it off - it will always minimally run at low speed

#

I ran into the 'can't turn off' as well, but just disregarded it 🙂

grim canopy Apr 7, 2026, 12:43 PM

#

I could think this should change in the model as it's quite common to have various fans with different speeds but off/0 isn't one of them

golden willow Apr 7, 2026, 12:54 PM

#

Yea I think so as well, but haven't looked at implementations and if a fan not supporting OFF means it does support fan speed -> 0

grim canopy Apr 7, 2026, 1:16 PM

#

Sure, up to the product what it can support but the model should be 1-100 then

#Fan entity off