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4.FURTHER INFORMATION
PROBLEM
3. Group head
Handle not
fitting correctly
on group head
Incorrect water
flow through
group head
(fitted with
filled handle)
Poor water flow
through group
heads (no
handle)
Group head steam
pressure below normal
(machine sounds weak)
Group head
running too hot
(eg steam pressure
above normal)
26
SOLUTION
•
Group head seals not cleaned cor-
rectly (excess grounds covering
seal area, see page 17).
•
Filter basket not correctly clicked
into handle.
•
Excess grounds in filter basket (see
page 21).
•
Group seal has dropped, often
caused by operator not removing
or fitting handles correctly. (Call
service technician.)
See pages
19–20
for further informa-
tion on the following, which can all
affect flow rate:
•
grind texture
•
tamping
•
quantity of grounds in filter basket
•
handle not firmly on group head
•
pump pressure (normally 8 bar).
•
If pump pressure is correct (8 bar),
the shower head could be partially
blocked with coffee oils. This is
caused by negligence and improper
cleaning, and builds up over a peri-
od. Chemically clean machine three
times (see page 18) and call service
agent to check condition of heads.
•
Operate group heads, steam wands
and hot water outlet to bring machine
up to pressure (see page 15).
•
On a busy day the temperature of the
water passing through the group
heads from the heat exchanger can
rise above normal, resulting in poor
coffee and a very strong steam
sound. When this happens, prior to
making the next coffee, remove cof-
fee handle and run water through the
group head This will introduce cold
water into the heat exchanger and
"soften" the steam flow. That is, the
machine should sound as though it's
operating normally.
4.FURTHER INFORMATION
PROBLEM
Poor quality
4. Steam wand
milk froth
Steam wand
not producing
enough steam
Steam flowing through
wand while tap turned off
Water
overflowing from
drip tray
27
SOLUTION
•
Milk not cold enough before starting
frothing, causing the milk to be fully
heated before being fully frothed.
•
Using previously heated milk with-
out adding cold milk. See page 27.
•
Seasonal problems with milk. This is
rare, but on occasions milk can be sup-
plied that will not froth properly. Obtain
milk supply from another source for
duration of seasonal problems.
•
Steam wand nozzle partially or fully
blocked. Either use other steam wand
or clean defective nozzle by submerg-
ing it in a jug of cold water for around
five minutes. and then operating
wand. If this does not unblock it, you
may need to call the service agent.
•
Confirm tap is turned fully off. If so the
washer might need replacing, which is
done by the service agent.
•
Water catchment box blocked with
coffee grounds
•
Drain tube blocked with coffee grounds.
•
Drain tube sagging, and creating a
blockage.
•
If draining into a bucket, a sag in the line
can cause an air pocket.
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