Fuse Replacement; Installation - Whistler GT-438G Owner's Manual

INSTALLATION

Fuse Replacement

The lighter socket plug is equipped with a replaceable 2 amp,
3AG fuse located behind the silver tip. To replace the fuse,
carefully unscrew the tip of the plug.
Important: Unscrew slowly. The tip contains a spring which
may fly out when disassembling. Insert the new fuse with the
spring and screw on the tip. With use, screw cap on plug may
loosen. Retighten occasionally.
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