Dibo JMB-MG Mode D'emploi page 137

11 Failures
The screen includes a number of failures like indicated on this page. When
service is necessary, also a message will appear. During run-dry of the water
tank, the burner will first turn off, afterwards the machine will shut down.
-> cool down process.
Pay attention: this screen always appear if there will be switched
from position 0 to 1 (via key contact) when the required service
period is necessary. Move the control stick to the left to remove the
message from the display.
Messages:
DiBO 31
E N
AC T I VAT I O N