Roslyn Road principal Paul Kirk said a blower overheated, creating a smoky smell in one of the kindergarten classrooms early Tuesday.
"As a precaution, the fire department was immediately contacted and they quickly arrived to determine the cause of the smell. The source was immediately determined and a fire was averted," Kirk said in an email to parents.
District 220's Chief Communications Officer Jeff Arnett said no students were injured or evacuated. Those in the classrooms impacted by the incident were moved to another part of the school.
"There was no noticeable blaze, the smoke smell dissipated and any remaining odor was barely evident in the contained area after fans were used to clear the air," Kirk said.
The Barrington Fire Department said the school is safe to be occupied by children. School will be open as scheduled Wednesday.