ComNav P4 Installation and Operation Care and Maintenance
Document PN 29010100 V1r0 - 168 -
Fuse Replacement
There are two fuses used on the SPU.
Replace fuses only with the same type and rating, as per the table below.
Should a fuse blow, determine the cause before replacing.
To inspect and/or replace a fuse, the clear plastic cover over the SPU’s Diagnostic section
must be removed. To do so, gently pry up the center portion of the plastic rivets which fasten
the cover to the SPU’s case; be careful not to lose any of the plastic pieces.
After the fuse(s) are replaced, the cover must be re-installed, and remain in place during
normal operation.
Generic Description
Manufacturer(s) and Part Number(s)
20A, Non-Time Delay, 125V, ¼”x 1-1/4”
Bussman ABC -20
3.15A Medium Time Delay, 125V or better,
5 x20mm(DIN41571,IEC127, Bussman
GMC 3.15A
Table 7 – Fuse Replacement Guide
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