It has been stinky and sweaty on Metro’s platform at Union Station for about nine days, but the transit agency says it’s on the verge of fixing the problem.

Metro officials said the circuit board that controls the station’s chiller has been broken since Aug. 21, but after waiting for new parts to arrive from the manufacturer, the agency hopes to fix it by the end of Thursday — before temperatures soar past 90 degrees, as they’re predicted to do this weekend.