The Monroe County YMCA will reopen Friday after being closed for five days.

A fire early Sunday knocked out a transformer that supplied power to the building. Ameren replaced the transformer Sunday, but power was not restored to the building until 11:45 p.m. Wednesday.

Repair and preparation work at the site kept the facility closed through Thursday. Jeff Saunders, marketing director for YMCA of Southwest Illinois, declined to comment on what repair work was completed or the cause of the fire.

The Monroe County YMCA Facebook page said that underground work was performed to fix the root cause of the issue.

Ameren Illinois spokeswoman Stacey Shangraw said the company was called back Monday to assist the YMCA electrician and again Wednesday to restore power. Shangraw said Ameren only restores power when it is safe and the customer grants permission. Ameren performed no other work at the site.

The Columbia Volunteer Fire Department could not be reached for comment.

Saunders said preparation work, such as heating the swimming pool, was completed Thursday to ready the facility to open Friday.