Troubleshooting - Jura 751 Instructions For Use Manual

7 Troubleshooting

Problem
Insufficient foam is
produced when the
milk is frothed or
milk sprays from the
dual spout.
Coffee only comes
out in drips when it
is being prepared.
Little or no steam
comes out of the
dual spout. The
pump is very quiet.
'Fill water tank' is not
displayed although
the water tank is
empty.
Cause/Result
The dual spout is dirty.
The milk and milk foam
temperature is set too
high.
Coffee or ground coffee
has been ground too
finely and is blocking the
system. The water
hardness may not have
been correctly set.
The connector of the milk
system in the dual spout
may be blocked by milk
residues or limescale
fragments loosened
during descaling.
There is a lot of limescale
in the water tank.
Action
T Make sure the cover of the dual spout is
correctly fitted.
T Clean the milk system in the dual spout
(see Chapter 5 'Maintenance – Cleaning the
milk system').
T Dismantle and rinse the dual spout (see
Chapter 5 'Maintenance – Dismantling and
rinsing the dual spout').
T Set a lower milk and milk foam tempera-
ture for the product.
T Put the grinder on a coarser setting or use
coarser ground coffee (see Chapter 2
'Preparation – Adjusting the grinder').
T Perform descaling (see Chapter 5 'Mainte-
nance – Descaling the machine ').
T Press the releasing devices and pull the
cover of the dual spout up and off.
T Remove the milk system from the dual
spout.
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.
T Descale the water tank (see Chapter 5
'Maintenance – Descaling the water tank').
7 Troubleshooting
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