Negotiations were held this weekend, but the union and university did not reach a deal.
[Ads /]
ABC7 has been told pay is the union's biggest issue.
The union said faculty at the South Side university are among the lowest paid in the state.
In a statement, Chicago State said it has made numerous concessions, in an attempt to strike a deal with the union.
[Ads /]
Classes and student services will continue, as normal, Monday.