Use percentage value from one to another

Configuration
1 
The automation seems to be correctly in the Development tools - Template but entity: fan.cooling didn't take it. can anyone see my error here?

- id: cr10_cooling_fan
  alias: "CR-10 Cooling Fan Speed"
  trigger:
    - platform: template
      value_template: "{{ states ('sensor.3d_printer_fan_speed') | int > 0 }}"
  action:
    - service: fan.set_percentage
      data_template:
        entity_id: fan.cooling
        percentage: "{{ states ( 'sensor.3d_printer_fan_speed') }}"

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2

Please use proper formatting with the </> in the menu bar

3

fix it. Thanks

4

I wonder is it a proper calling?

states ('sensor.3d_printer_fan_speed')

I mean a whitespace.

5 

I don't think it's matter. as you can see in the result percentage which return proper value, 25.
I did change service: fan.turn_on then It works but only once.
6
  1. Do not use a “code” formatting for a non-code part of your post.
  2. Have you checked with Dev tools - Services to confirm that your call is correct?
7

action only trigger once time when fan speed has new value from 0, after that action don’t execute unless fan speed reset back to zero and slide to new number.

8

Yes, that’s how a template trigger works, when the template changes from false to true.

You probably want a state trigger:

trigger:
  - platform: state
    entity_id: sensor.3d_printer_fan_speed
9

I also found that from another post. Got it now. Thanks.
I shorted onboard cooling fan circuit while replace another cooling fan, that circuit is dead but its slider on klipper still work so I want to map its percentage speed to ESP8266_pwm + MOS FET PWM module It acts like the onboard pwm fan now.

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