Think about it its not rocket science..
Is zone seven used. If not then it needs to be linked out or programed out.More likely to be the latter with these modern day panels.
If the zone is used then suspect the wiring or what ever deviceis connected to the end of it. Simples
Robert
March 2017
Getting too many of these now. If people don't give full information it is almost impossible to answer the question, as here.