ZyWALL 5/35/70 Series User’s Guide

AP PE N D I X C

Removing and Installing a Fuse

This appendix shows you how to remove and install fuses for the ZyWALL.

If you need to install a new fuse, follow the procedure below.

Note: If you use a fuse other than the included fuses, make sure it matches the fuse specifications in the appendix on product specifications.

Removing a Fuse

Note: Disconnect all power from the ZyWALL before you begin this procedure.

1Place the rear panel of the ZyWALL in front of you.

2Remove the power cord from the back of the unit.

3The fuse housing is located between the power switch and the power port. Use a small flat-head screwdriver to carefully pry out the fuse housing.

4A burnt-out fuse is blackened, darkened or cloudy inside its glass casing. A working fuse has a completely clear glass casing. Pull gently, but firmly, to remove the burnt out fuse from the fuse housing. Dispose of the burnt-out fuse.

Installing a Fuse

1The ZyWALL is shipped from the factory with one spare fuse included in a box-like section of the fuse housing. Push the middle part of the box-like section to access the spare fuse. Put another spare fuse in its place in order to always have one on hand.

2Push the replacement fuse into the fuse housing until you hear a click.

3Firmly, but gently, push the fuse housing back into the ZYWALL until you hear a click.

4Plug the power cord back into the unit.

Appendix C Removing and Installing a Fuse

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