Rocket BOXER - 7.2 Troubleshooting

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BOXER
EN
MACHINE
UNDER
MAINTENANCE
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MACHINE
UNDER
MAINTENANCE
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DESCALING
1. Rocket Espresso do not recom-
mend descaling your espresso
machine.
2. Many of the chemicals used to
descale espresso machines are
particularly aggressive. These
chemicals can cause internal
corrosion of hard metals used in
the construction of the machine.
3. 󰀩
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 ltered 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 lter basket is not under-dosed.
■ Check the grind is not too coarse.
Extraction is too slow
■ Check the lter basket is not overfull
■ Check the grind is not too ne.
■ Check the shower foil is not blocked - it
may need to be back ushed or removed
and cleaned
■ Check the spout of the handle is not
blocked. If it is dirty with rancid co󰀨ee oil, it
will need to be soaked in a solution of es-
presso head cleaning shampoo and water.
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 ne. Correct the dose and
make it coarser.
■ The machine may be dirty. Back ush and
clean the group head. Clean the group
handles and lter baskets.
Espresso tastes sour
■ Extraction may be too fast. Check the grind
is not too coarse. Correct the dose and
make it ner
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.
■ Co󰀨ee may be too fresh