![background image](/i/bosch/29024/bosch-tcc-78k750/h/bosch-tcc-78k750-026.png)
22
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Problem
Cause
Solution
Display.shows.
Error
Please contact
hotline
The.appliance.has.a.fault.
Please.call.the.hotline.
The.water.filter.does.not.
stay.in.position.in.the.water.
tank.
11.
The.water.filter.is.not.
mounted.correctly.
Firmly.press.the.water.filter.
straight.down.into.the.tank.
connection.
The.coffee.grounds.are.not.
compact.and.are.too.wet.
The.grinding.setting.is.too.
fine.or.too.coarse,.or.not.
enough.ground.coffee.has.
been.used.
Adjust.the.grinding.unit.to.a.
coarser.or.finer.setting,.or.
use.2.level.measuring.
spoons.of.ground.coffee.
Display.shows..
Clean brewing unit
Brewing.unit.is.soiled.
Clean.brewing.unit.
Too.much.pre-ground.cof-
fee.in.the.brewing.unit.
Clean.brewing.unit..
(Pour.in.no.more.than.2.
level.measuring.spoons.of.
ground.coffee).
The.brewing.unit’s.
mechanism.is.stiff.
Remove.the.brewing.unit.
and.treat.with.a.special.
grease.intended.for.this.
purpose.(Order.No..
311368),.see.“Maintenance.
and.daily.cleaning”.
Coffee.or.milk.froth.quality.
varies.considerably..
Build-up.of.limescale.in.the.
appliance.
Descale.the.appliance.with.
two.descaling.tablets.as.
described.in.the.instructions.
Water.dripped.onto.the.inner.
floor.of.the.appliance.when.
the.drip.tray.was.removed.
Drip.tray.removed.too.early. Wait.a.few.seconds.after.
the.last.drink.was.dispensed.
before.removing.the.drip.
tray.
If you are unable to solve the problem, please call the hotline.
Simple troubleshooting