NAPERVILLE, Ill. (AP) — Testing is set to begin to help determine the best way to fix structural problems at a Naperville tower that houses the Millennium Carillon .

The (Arlington Heights) Daily Herald reports that there is scaffolding and fencing around Moser Tower in the Chicago suburb. The testing comes after a report last spring found cracked and deteriorating concrete and corroded steel supports that could decrease the stability of the 18-year-old, 160-foot-tall tower.

The 10-to-14 day assessment will look at the tower’s construction, materials and strength. The autoplay function that makes the carillon bells chime throughout the day will be interrupted.

Test results are expected to give potential repair solutions along with their life expectancy and cost.