Jura D4 - Troubleshooting Common Issues; Problem Diagnosis and Solutions

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7 Troubleshooting
7 Troubleshooting
Problem Cause/Result Action
Coffee only comes
out in drips when it is
being prepared.
The coffee is ground too
finely and obstructs the
system.
T Set the grinder to a coarser setting
(see Chapter 2 ‘Preparation – Adjusting
the grinder’).
The water hardness may
not have been correctly
set.
T Perform descaling (see Chapter 5
‘Maintenance – Descaling the machine’).
The Water Tank
symbolM lights up even
though the tank is full.
The water tank float is
trapped.
T Descale the water tank (see Chapter 5
‘Maintenance – Descaling the water
tank’).
Grinder is making a
very loud noise.
There are foreign objects
in the grinder.
T Contact customer support in your
country (see Chapter 11 ‘JURA contact
details/ Legal information’).
The Descaling symbol&
or the Double Product
symbol‘2x’ flashes for
5seconds.
If the machine has been
exposed to the cold for
a long period of time,
heating may be disabled
for safety reasons.
T Warm the machine at room
temperature.
Other symbols flash for
5seconds.
–
T Switch the machine off with the On/Off
button Q. Contact customer support
in your country (see Chapter 11 ‘JURA
contact details/ Legal information’).
Little or no water comes
out of the hot-water
nozzle. The pump is
very quiet.
The connector of the
hot-water nozzle may
be blocked by limescale
fragments loosened
during descaling.
T Remove the hot-water nozzle.
T Unscrew the black connector with
the aid of the hexagonal hole on the
measuring spoon for ground coffee.
T Clean the connector thoroughly.
T Screw the connector back on by hand.
T Carefully tighten it using the hexagonal
hole on the measuring spoon, turning by
no more than a quarter of a rotation.
E If you were unable to solve the problem, contact customer
support in your country (see Chapter 11 ‘JURA contact details/
Legal information’).