DeLonghi NESCAFE Dolce Gusto EDG 305 Service Manual page 20

Check
procedure
6.1 Leakage at extraction
head
6.2 Water underneath the
machine
6 Check for leaks
and/or flow rate
while preparing a
beverage (see page
15)
6.3 Flow rate out of range
7.1 Check vibrations while
putting a plastic beaker on the
drip grid
7 Check for loud
noises or vibrations
7.2 Check vibrations on the
water tank (water is waving)
8 Perform final tests
(see page 49)
9 Perform final
cleaning (see page
62)
No trouble found during the check procedure?
Ask SEB / Krups after­sales service for further details
in order to make a decision.
Symptoms
YES ­ a) Capsule has multiple
perforations?
NO ­ Go to point 6.2
YES ­ Defective pressure hoses?
NO ­ Go to point 6.3
YES ­ a) Fluid system is scaled?
YES ­ b) Needle plate is blocked?
YES ­ c) Filter of water tank
connector is blocked?
YES ­ Coffee machine or plastic
beaker is moving around
YES ­ Water tank is vibrating on the
machine?
SEB / Krups after­sales service contact:
Mr. François de Sevin de Bandeville
Phone: +33 (0) 2 43 08 38 28
E­Mail: fdesevin@groupeseb.com
End of check procedure.
T R O U B L E S H O O T I N G
Action / repair work
Service manual
Further action /
repair work
YES ­ Perforate capsule only
once, see user manual
NO ­ Replace extraction head
(see page 48)
YES ­ Replace defective pres­
sure hoses with clips
NO ­ Go to point 6.4
YES ­ Descale the fluid system
(see page 58)
NO ­ Go to point b)
YES ­ Deblock needle with
cleaning needle (see page 23)
and descale again (see page 58).
Replace needle plate if sealing
ring is defective.
NO ­ Go to point c)
YES ­ Replace filter
NO ­ Replace pump (see page
30)
YES ­ a) Check if drip tray and
drip grid are inserted correctly,
set it right if necessary
NO ­ Go to point b)
YES ­ b) Check if rubber feet are
missing, replace if necessary
NO ­ Go to point c)
YES ­ d) Pump is not firm in its
support, replace it (see page 30)
NO ­ Go to point 8)
YES ­ Pump is not firm in its
support, replace it (see page 30)
NO ­ Go to point 8
21