Leica CM1850 Cryostat – Error E027. Lab Equipment Repair October 31, 2019 admin Blog, videos Leica is no longer servicing the CM 1850, but we are! Learn more here. Related Posts Game of Tones! How to Reset Thermo Microm HM 525 Cryostat – Chamber Temp Is Above Room Temp Keeping Your Lab Equipment Running Smoothly Amid COVID-19 With many labs resuming operations after shutdowns, or running at… What to do when your tissue Tek 5 display isn’t working.