How to set Winix fan speed attribute?

Configuration
1

I have a Winix fan, but this question applies to any entity with sub attributes. I want the fan speed set to high at night, and low in the day. But the only settings I see in an automation are State settings- “off” or “on” or “toggle”. However it has many attributes, including airflow:medium (or low or high). How can I set an attribute using the automation UI? I also tried to control as a service but no joy.
FYI when I add the device to lovelace, I can control the fan speed…just not by automation!

2

I’m trying to do the same. Any luck getting this to work @starmanj

3

Sorry never updated with the solution. It’s a “fan” service! Stumbled into it. This is what is confusing with HA-- entities don’t list everything HA can do with it? WHY?
If you click on a Winix fan device, it will present graphically a slider (it’s more than on/off)-- you can select a percentage. In YAML, it’s:

service: fan.set_percentage
data:
  percentage: 100
target:
  entity_id: fan.boulder_mbr_winix
4

Thanks for the follow up! I actually saw your other post here that worked for me. Now, If I can only figure out how to turn off and on the plasmawave. Have you figured this out? Side note, looks like you might be in Boulder (I’m in Denver).