Older:Condensation inside the machineThe water level reading is offMachine boot-up troubleshooting steps (error_bootfill)GHC ghost tap issue / only one function and stop button workSteam wand ball joint nut leakage
Newer:DE1 Descaling InstructionPimp your DE1It's almost a blind basket: A first step to better understand a pressure curve during espressoPreinfusion: basic principles, preinfusion on a Decent, and PCT ratioCoffee research