Krups KP 5000 Service Manual page 23

If upper side of
injector plate is wet
and badly soiled, the
sealing ring is defect. In
that case replace com-
plete extraction head.
Alternatively use a
pin or needle with
dia. 0.6 mm max. to clear
the injector bore. A piece
of polyamid fishing line
or nylon monofilament
with suitable diameter
can be used also..
R E P A I R
6. Examine upper side of injector plate.
7. Clean interior space of sealing ring with a toothpick etc.
8. Clear blocked bore of injector with cleaning needle.