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Your Whistler detector is expertly engineered and
designed to exacting quality standards to provide you
with reliable, trouble-free operation. If your unit has
been correctly installed following the guidelines in this
guide, but is not operating optimally, please refer to the
troubleshooting guide below.
PROBLEM:
Unit does not turn on.
•
Check fuse in power cable, replace if necessary.
•
Check fuse in fuse box, replace if necessary.
PROBLEM:
Unit alarms when vehicle equipment or
electrical accessories (brakes, power mirrors/windows,
directionals, horn, etc.) are in use.
•
Check conditions of vehicle’s electrical system,
including battery and alternator.
PROBLEM:
Audio alerts are not loud enough.
•
Cancel Auto Quiet Mode or City Mode.
•
Check audio level setting.
•
Check Speed Selective Auto Quiet setting in Option
Mode.
PROBLEM:
Unit alarms when vehicle hits bumps.
•
Check for loose lighter socket; tighten and clean.
•
Check connections at both ends of the power cord.
Substitute another cord to determine if the cord is
defective. Return defective cord to the factory.
TROUBLESHOOTING
Summary of Contents for MFU440
Page 1: ...MFU440 User Guide MULTI FUNCTION RADAR DETECTOR W FULLY INTEGRATED DASH CAM...
Page 5: ...5 FEATURE DESCRIPTION 11 2 6 7 8 9 10 3 4 5 12 16 14 15 17 1 13 18...
Page 45: ...45...
Page 46: ...46...
Page 47: ...47...
