UPDATE (8/6/2015): Good news for the Walnut Street West Library staff and customers: the AC system has been repaired, and the library is set to re-open on Friday, Aug. 7. Check out the library’s Facebook page for more information.

8/4/2015: Here’s some bad news from the Walnut Street West branch of the Free Library (40th and Walnut). Thanks to some issues with the branch’s heating and cooling system, the library will be closed “until further notice,” according to the Facebook page for the branch.

“We do not have any information at this time regarding when the branch will reopen,” the page reads. “Without the necessary repairs, our building will stay closed until such a time as the interior temperature falls into the 70-degree range.”

Details are still being worked out for picking up holds placed at the branch, and any fines caused by the closure will be waived, the post continued.