Hi, I've just gone through this issue a couple of days ago. After a lot of troubleshooting (cleaning procedures, leakage checks, alternative VTF) I fixed it by isolating it from the balcony it's sitting on. Now it's night/day, like purchasing a new machine. Give it a try, use some rubber balls (be sure to secure them) under, level it and put it in action. It should tell you if the machine needs repair or if the interaction between it and the desk it sits on is causing you trouble. I was suprised with how much of a deal isolation made here and also with the lack of users mentioning it in their experiences.
