Xiaomi Humidifier action crash if speed value passed

[StanislavBolshakov]

Home Assistant release with the issue:

0.87.1

Last working Home Assistant release (if known):
Don't know

Operating environment (Hass.io/Docker/Windows/etc.):

Docker
Component/platform:

https://www.home-assistant.io/components/fan/
https://www.home-assistant.io/components/fan.xiaomi_miio/
Description of problem:

Passing speed value to Xiaomi Humidifier 2 ends with an error. Same service called from web interface works fine for some reason.

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

fan:
  - platform: xiaomi_miio
    host: 172.16.100.31
    token: !secret humidifier_token

Automation itself:

- alias: 'Humidify on weekdays'
  trigger:
    - platform: numeric_state
      entity_id: sensor.humidity_158d0001b75d90
      below: '55'
  action:
    - service: fan.turn_on
      data:
        entity_id: fan.xiaomi_miio_device
        speed: high

Traceback (if applicable):

2019-02-19 14:38:18 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/homeassistant/components/fan/xiaomi_miio.py", line 551, in _try_command
    partial(func, *args, **kwargs))
  File "/usr/local/lib/python3.6/concurrent/futures/thread.py", line 56, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/usr/local/lib/python3.6/site-packages/miio/airhumidifier.py", line 329, in set_mode
    return self.send("set_mode", [mode.value])
  File "/usr/local/lib/python3.6/site-packages/miio/device.py", line 272, in send
    raise DeviceError(m.data.value["error"])
miio.exceptions.DeviceError: {'code': -6011, 'message': 'device_poweroff'}

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/homeassistant/helpers/service.py", line 289, in _handle_service_platform_call
    await getattr(entity, func)(**data)
  File "/usr/local/lib/python3.6/site-packages/homeassistant/components/fan/xiaomi_miio.py", line 566, in async_turn_on
    result = await self.async_set_speed(speed)
  File "/usr/local/lib/python3.6/site-packages/homeassistant/components/fan/xiaomi_miio.py", line 879, in async_set_speed
    self._device.set_mode, OperationMode[speed.title()])
  File "/usr/local/lib/python3.6/site-packages/homeassistant/components/fan/xiaomi_miio.py", line 557, in _try_command
    _LOGGER.error(mask_error, exc)
  File "/usr/local/lib/python3.6/logging/__init__.py", line 1336, in error
    self._log(ERROR, msg, args, **kwargs)
  File "/usr/local/lib/python3.6/logging/__init__.py", line 1443, in _log
    self.handle(record)
  File "/usr/local/lib/python3.6/logging/__init__.py", line 1453, in handle
    self.callHandlers(record)
  File "/usr/local/lib/python3.6/logging/__init__.py", line 1515, in callHandlers
    hdlr.handle(record)
  File "/usr/local/lib/python3.6/logging/__init__.py", line 864, in handle
    self.emit(record)
  File "/usr/local/lib/python3.6/site-packages/homeassistant/components/system_log/__init__.py", line 130, in emit
    entry = self._create_entry(record, stack)
  File "/usr/local/lib/python3.6/site-packages/homeassistant/components/system_log/__init__.py", line 113, in _create_entry
    'message': record.getMessage(),
  File "/usr/local/lib/python3.6/logging/__init__.py", line 338, in getMessage
    msg = msg % self.args
TypeError: not all arguments converted during string formatting

Additional information:

[syssi]

It looks like the firmware doesn't allow a set_mode call if the device is turned off. Could you try to extend your automation (as workaround): Call the turn_on service without the speed parameter. Call the set_speed service afterwards with speed: high. If this solution works fine I will update the HA component:

https://github.com/home-assistant/home-assistant/blob/dev/homeassistant/components/xiaomi_miio/fan.py#L556-L564

[StanislavBolshakov]

Already done this. Works fine for a week. Action part looks like this:

  action:
    - service: fan.turn_on
      data:
        entity_id: fan.xiaomi_miio_device
    - service: fan.set_speed
      data:
        entity_id: fan.xiaomi_miio_device
        speed: high