Failure modes

I’m considering setting up a HA system on a Pi4 with zigbee devices but I’m worried about how the devices will behave if HA is down or unavailable. I’m a noob here so please excuse me if these concerns are unfounded.

Will the thermostat shutoff, or is the heat/cool schedule cached on the device?

Will the PINs for smart lock keypads continue to work when HA is down or unavailable?


The thermostat will continue to work like a thermostat.

The smart locks will still respond to manually entered PINs.