For all DG/DGC/DGM: the fault can occur, if, for example, a large quantity of frozen food is being cooked.
Switch the appliance off and on again, and restart the programme.
Fault F20 is shown on the display of the steam oven/combination steam oven. The steam oven/combination steam oven is not getting hot.
Switch the appliance off and on again, and restart the programme.
Push the water container into the appliance until it engages.
Switch the appliance off and then back on again.