I have a 1997 R300 6-color. The pressman is reporting that the press is giving late sheet errors after the press has been running for several hours and building up some heat under the feeder. The drive side cover was removed and fan placed to blow cool air under the feeder resulting in the issue going away. Are there any known issues with the WEKO box causing this when overheating or is this a coincidence and really another cause we're not currently aware of?