The Room Status needs to be changed manually when a Room goes from being untenantable, back to being Tenantable again.

Changing a Vacant Untenantable Room to a Vacant Tenantable Room
To change the Room Status in a Property, you must go in to the Property Screen. From the Home Screen, click Properties, then click Manage Properties and double click on the row of the Property you want to change the Room Status for.  Once in the Property Record, to make a Room Vacant Tenantable, double click on the Room you want to change the status for. The Room details pop up will open:

Enter the date the Room will be available to have a Tenancy again in the Until field: 


The Room is now restored back to Vacant Tenantable and is able to have a Tenancy.


Vacant Rooms and Vacant Untenantable Rooms eLearning Video