Rocket BOXER Manual De Uso Y Mantenimiento página 52

EN
DESCALING
1. Rocket Espresso do not recom-
mend descaling your espresso
machine.
i
2. Many of the chemicals used to
descale espresso machines are
particularly aggressive. These
chemicals can cause internal
E corrosion of hard metals used in
the construction of the machine.
3. Additionally it is very difficult
to remove all the descaling
solution from the machine once
the procedure is completed.
4. Control the quality of the water you use in
the machine, always using a filtered water.
Distilled water may lack the necessary
conductivity required for various electronic
functions needed in the operation of the
machine.
7.2 TROUBLESHOOTING
Extraction is too fast
■ Check the filter basket is not under-dosed.
■ Check the grind is not too coarse.
Extraction is too slow
■ Check the filter basket is not overfull
■ Check the grind is not too fine.
■ Check the shower foil is not blocked - it
may need to be back flushed or removed
and cleaned
■ Check the spout of the handle is not
blocked. If it is dirty with rancid coffee oil, it
will need to be soaked in a solution of es-
presso head cleaning shampoo and water.
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BOXER
Water escaping from around the handle
■ Check the head seals. If they have dried
out, they will need to be replaced.
■ Ensure the group handles are kept in place
whenever the machine is not in use, as this
will help to protect the seals.
Espresso too cold
■ Check the cups are warm. You can heat
your cups by pouring hot water into them,
and then discarding it, before you start the
extraction
■ Too much water may have been drawn
from the group head. Let the machine rest
and limit the amount of water drawn from it
between extractions to ensure the machine
remains at temperature.
Espresso tastes bitter
■ Extraction may be too slow. Check the
grind is not too fine. Correct the dose and
make it coarser.
■ The machine may be dirty. Back flush and
clean the group head. Clean the group
handles and filter baskets.
Espresso tastes sour
■ Extraction may be too fast. Check the grind
is not too coarse. Correct the dose and
make it finer
Espresso is watery and thin
■ Extraction may be too fast. If it is, the cre-
ma will be pale. Check the grind is not too
coarse. Correct the dose.
Espresso is bubbly
■ Water from the machine may be too hot.
Let some water run from the group head.
Try another extraction.
■ Coffee may be too fresh