Over last winter (2016-17) the Timeball Tower Museum underwent considerable refurbishment. The electrical systems were updated and the interior was repainted. The Timeball roof was completely re-sealed and all the slates were replaced early in 2017. Regrettably at the start of the main 2017 season, a fault developed with the Timeball operating system which has necessitated adjusting the movement of the Ball to make it slightly slower. Eventually an expensive major overhaul will be needed to the switching system which controls the Ball's travel. There may therefore be periods in 2017 when the Timeball is locked either up or down for safety reasons.