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User Manual WMF presto
Error
Display
Error Description Action
88 Boiler
overheating
Beverage dispenser temporarily blocked.
Check that mains tap is on or that the water
tank is filled and correctly inserted
If subsequently no OK:
Switch off coffee machine
Clean brewing unit
See Customer Care Chapter, Cleaning, Brewing unit
Switch on and try again
(Release follows when cooled down to normal temperature).
Switch off coffee machine, allow to cool and
switch on again
89 Boiler
heat-up time fault
Switch machine off and on again.
161 Brewer water
fault
Between each of the folloing steps switch the machine off and on
again. If fault not remedied carry out the next step.
Check that main tap is on or water tank
correctly filled and inserted.
Clean brewing unit.
See Customer Care Chapter, Cleaning, Brewing unit
Set grind fineness one grade coarser.
See Other Settings chapter
Reduce Quality.
See Settings, Recipe.
163 Warm rinse water
fault
Between each of the folloing steps switch the machine off and on
again. If fault not remedied carry out the next step.
Check that main tap on or water tank correctly
filled and inserted
Clean brewing unit
See Customer Care Chapter, Cleaning, Brewing unit
186 Steam boiler level
Outlet temporarily blocked.
Check that coffee grounds container correctly
inserted.
Switch machine off and on again.
188 Steam boiler
overheating
Outlet temporarily blocked.
After releasing check milk foam and steam
outlet.
Switch off machine, allow to cool and switch on
again.
189 Steam boiler
heat-up time
failure
Switch machine off and on again.