A computer control board crashed at about 3 a.m. Monday morning, closing Crystal Pool and Fitness Centre for at least three days.
City staff are now scrambling to find a replacement computer panel to control the ventilation and temperature in the recreation facility.
All recreational programs set to begin this week will be postponed by at least one week.
The failed control panel was 30 years old and due to be replaced this spring. Crystal Pool was due to reopen Monday after a six-week closure for planned repairs.