2010 Geno/Grinder
Page 23 of 28 SPEX® SamplePrep LLC July 2014
9.1 Changing the Fuses
If the Geno/Grinder will not operate when the start button is pressed, it is possible that one
or both of the fuses may have blown. To access the fuses, first remove the power cord
from the back of the Geno/Grinder. Then open the door on the fuse compartment by
gently prying it open at the top and flipping it down. Use a small screwdriver to gently pry
the red fuse holder out of the compartment, as shown in Figure 15. Remove the fuses and
check them using a continuity tester. If either fuse is blown or defective, replace both with
3AG 8-amp, 230V slow-blow fuses for the 115V model, or 3AG 5-amp, 230V slow-blow fuses
for the 230V model. Position the fuse holder such that the appropriate operating voltage
appears on top. Return the fuse holder to the fuse compartment and close the access door.
Check the window of the fuse compartment to make sure that it shows the appropriate
voltage. If not, the fuse holder is upside down and must be turned around before
attempting to operate the Geno/Grinder.
Figure 15 – Changing the Fuses
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