To ensure the fastest possible response from our team, the best way to reach us is to send an email to support@evosep.com. Priority is given to users with an Evosep service contract. Ideally, you would have already done all 5 diagnostic tests (as explained in Diagnostics section in Troubleshooting) and attached the Evosep logfiles (Advanced User Guide, chapter 12.1) in the email. There you can describe the issue and all the steps already taken. In many cases, we can help you solve the issue in the same day, and you can continue running your samples.