Validating measured values/states

So a couple of days ago my wife disconnected a Z-Wave wall plug, effectively reducing the Z-Wave network range. I have an Aeotec Garage Door Controller which currently reports that the garage door is open even though it’s closed. And I wonder what I can do about this. Either the controller is mistaken or Home Assistant is. How can I verify this? How can I validate or control the value or state that Home Assistant reports? Is it possible to force Home Assistant to re-read sensor values/states, or to control when and how often values/states are read?