AC Commands beeing skipped, automations failing

[paradox37]

Hello,

I am recently having an issue with controlling my AC using this integration. It will very often happen that when I press any command, ie turn off ac, nothing will happen, then I press again, and it works. Same thing happens when switching HVAC mode, changing fan speed, and so on. Even my automation sometimes fails, because actions part is reported as done, but it's actually not.

My AC is Vivax, but it's just rebranded Midea.

I tried changing Maximum connection lifetime, using 15 or 90, does not make a difference.

I am attaching logs, but I don't see anything special.

Any ideas?

home-assistant_2025-08-19T16-36-34.977Z.log

config_entry-midea_ac-c063edc57c8bb2911fe65b03b35f2390.json

[mill1000]

Hm...nothing of interest in the logs. Your connection looks solid so I don't expect the connection lifetime to make a difference.

There is some lock logic around refreshes

midea-ac-py/custom_components/midea_ac/coordinator.py

Lines 39 to 52 in 5f066ef

	async def _async_update_data(self) -> None:
	"""Update the device data."""
	async with self._lock:
	await self._device.refresh()
	async def apply(self) -> None:
	"""Apply changes to the device and update HA state."""
	# Apply changes to device
	async with self._lock:
	await self._device.apply()
	# Update state
	await self.async_request_refresh()

It's possible that is causing a command to be dropped (or at least delayed).

[mill1000]

Possibly related to mill1000/midea-msmart#225

[paradox37]

I have been using Midea AC LAN integration since reporting the bug here, and I didn't experience the problems I described here, so I guess there is some bug. Let me know if I can help somehow.

[mill1000]

Appreciate it. If you do have a repeatable method of recreating the issue I could add some additional logging to try and pinpoint the problem.