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Replacing fuses – Bio-Rad S1000™ Thermal Cycler User Manual

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S1000 Thermal Cycler Manual

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Replacing Fuses

Fuses on the S1000 thermal cycler are designed to blow in case of severe power surges or
other causes of an electrical short. This process protects both the user and the instrument
from excessive electric charge. Fuses on the S1000 thermal cycler rarely need to be replaced.
However, some institutions prefer to replace fuses on a regular basis to maintain uninterrupted
operation.

If the thermal cycler does not turn on, first check that the power cord is plugged in to a
functioning power source. Also, check that the power cord and power source are within the
specifications for this instrument. To replace the power cord, contact Bio-Rad Technical
Support.

Finally, check that the fuses are intact. The S1000 thermal cycler runs with two fuses
(Figure 16). To remove and check the fuses, follow these steps:

WARNING! To prevent electrical shock, always turn off and unplug the instrument
from an electrical outlet before checking the fuses.

1. Use a small coin to open the fuse drawer.

Figure 16. The fuse drawer on the back of the S1000 thermal cycler.

2. Pull out the fuse drawer and remove each fuse.

3. If a fuse is damaged, replace it with the correct fuse and close the drawer.

A bad fuse shows a break or burned spot in the metal; a good fuse has intact metal.

Fuse drawer