Script turns fan on, but equivalent script doesn't turn fan off

aryanne — Thu, 09 Oct 2025 03:34:26 GMT

Hi all,

I have a Yolink humidity sensor and a Shelly smart fan. I have used this script successfully to turn the fan on when the humidity in the bathroom goes over a certain percent:

metadata:
name: Turn on fan when humidity is high
description: When the humidity in the bathroom is over 65% turn the fan on
automations:
- starters:
- type: device.state.HumiditySetting
device: Temp Humidity Sensor - Bathroom
state: humidityAmbientPercent
greaterThan: 65
actions:
- type: device.command.OnOff
devices:
- Fan - Bathroom
on: true

I have this script to turn the fan off once the humidity falls below a certain percent. However, it won't work.

metadata:
name: Turn off fan when humidity is low
description: When the humidity in the bathroom is over 65% turn the fan on
automations:
- starters:
- type: device.state.HumiditySetting
device: Temp Humidity Sensor - Bathroom
state: humidityAmbientPercent
lessThan: 60
actions:
- type: device.command.OnOff
devices:
- Fan - Bathroom
on: false

If anyone has any idea why this might be or any suggestions why one works but the other doesn't, I would be very grateful.

Many thanks

topic Script turns fan on, but equivalent script doesn't turn fan off in Home Automation

Script turns fan on, but equivalent script doesn't turn fan off