By Ryan Quinn A group of Ben Franklin Career Center teachers filed a grievance last week against Kanawha County Schools over cooling and heating issues that have been ongoing there for years. The grievance comes amid increased scrutiny of Kanawha's maintenance needs and heating, ventilation and air conditioning issues. On the Friday of the first week of school, the district closed seven schools, including four of the county's eight public high schools, due to AC and power failures, meaning about one in 10 Kanawha public schools were closed that day. Four of the county's schools were closed the following Monday due to similar issues, and Kanawha schools Superintendent Ron Duerring has said the county has old AC systems and not enough money to replace them or make major upgrades. Julie Wiles said she led the effort to file the grievance and has about 14 other Ben Franklin teachers - about half the school's teachers - on board.