script:
  timed_fan:
    alias: "Turn on house fan and set timer"
    sequence:
      # Cancel ev. old timers
      - service: script.turn_off
        data:
           entity_id: script.timer_off
      - service: climate.set_fan_mode
        entity_id: climate.trane_model_tzemt400ab32maa_cooling_1
        data:
          fan_mode: 'On Low'
      # Set new timer
      - service: script.turn_on
        data:
          entity_id: script.timer_off

  timer_off:
    alias: "Turn off house fan after 30 minutes"
    sequence:
      - delay:
          minutes: 30
      - service: climate.set_fan_mode
        entity_id: climate.trane_model_tzemt400ab32maa_cooling_1
        data:
          fan_mode: 'Auto Low'