Service not triggered but registered correctly

I’m trying to add service to my Renson integration. Code can be found here.

When I test out the service, hass can found all the services for the integration. But when I call the service via the UI the UI says that it is successfully triggered but nothing happend. Also when checking the logs there is nothing in thre regarding the service calls.

Do I miss something to register the entity service?

What happens if you add a _LOGGER.debug in, e.g., set_timer_level?
Is the function actually called when you try the service in the UI?

If it is, the problem doesn’t lie in the service code…

I tried to debug this and the set_timer_level is not called