The problem

Hi all.

I have recently set up the nest integration for my thermostat. While testing the functionalities, I found that everything else works except the fan mode settings:

• Turning on/off the fan in the nest app will cause the fan status to be updated to ON/OFF correctly in HA
• Changing the fan settings in HA will show initial success, but settings is reverted after 5 seconds.

Looking at the log(debug logging enabled) shows that the nest_sdm API is called successfully but after a few seconds, a device event is received that shows the device status not updated. Logs are provided in relevant section:

I have followed all the procedures outlined in the setup guide, and from the looks of it, it's more likely a Google API issue. Is anyone else experiencing this?

API Doc: Fan Schema

What version of Home Assistant Core has the issue?

core-2023.9.3

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Google Nest

Link to integration documentation on our website

https://www.home-assistant.io/integrations/nest/

Diagnostics information

config_entry-nest-7f71c9d81a7d0c2b49efe393b64c004d.json.txt

Example YAML snippet

No response

Anything in the logs that might be useful for us?

Issuing timerMode OFF while the fan is on:

2023-09-26 14:22:09.594 DEBUG (MainThread) [google_nest_sdm.auth] request[post]=https://smartdevicemanagement.googleapis.com/v1/enterprises/personal-project-id/devices/personal-device-id:executeCommand
2023-09-26 14:22:09.594 DEBUG (MainThread) [google_nest_sdm.auth] request[post json]={'command': 'sdm.devices.commands.Fan.SetTimer', 'params': {'timerMode': 'OFF'}}
2023-09-26 14:22:11.546 DEBUG (MainThread) [google_nest_sdm.event] EventMessage raw_data={'eventId': 'personal-event-id', 'timestamp': '2023-09-26T18:22:10.586466Z', 'resourceUpdate': {'name': 'enterprises/personal-project-id/devices/personal-device-id', 'traits': {'sdm.devices.traits.Fan': {'timerMode': 'ON', 'timerTimeout': '2023-09-26T19:20:38Z'}}}, 'userId': 'personal-user-id', 'resourceGroup': ['enterprises/personal-project-id/devices/personal-device-id']}

and issuing timerMode ON while the fan is off:

2023-09-26 14:05:00.320 DEBUG (MainThread) [google_nest_sdm.auth] request[post]=https://smartdevicemanagement.googleapis.com/v1/enterprises/personal-project-id/devices/personal-device-id:executeCommand
2023-09-26 14:05:00.320 DEBUG (MainThread) [google_nest_sdm.auth] request[post json]={'command': 'sdm.devices.commands.Fan.SetTimer', 'params': {'timerMode': 'ON', 'duration': '43200s'}}
2023-09-26 14:05:03.237 DEBUG (MainThread) [google_nest_sdm.event] EventMessage raw_data={'eventId': 'personal-event-id', 'timestamp': '2023-09-26T18:05:01.048700Z', 'resourceUpdate': {'name': 'enterprises/personal-project-id/devices/personal-device-id', 'traits': {'sdm.devices.traits.Fan': {'timerMode': 'OFF'}}}, 'userId': 'personal-user-id', 'resourceGroup': ['enterprises/personal-project-id/devices/personal-device-id']}

### Additional information

_No response_