FRITSCH PULVERISETTE 5/4 classic line - Manual (Page 56)

Fault description Cause Remedy
No mains connection Plug in mains plug.
Main switch at 0 (OFF) Switch on main switch (I).
Excess current protection switch
has been triggered
Press the excess current protection switch
(9) on the back of the device
Grinding stock escapes Tensioning device (5) loose Check and re-tension if necessary.
Seal ring between the bowl and lid
is soiled or defective
Clean or replace seal ring.
Runs unevenly with strong vibra-
tions
Bowls are imbalanced Align the bowls symmetrically (equal masses
in the opposing position)
Repairs
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