SECTION 12—TROUBLESHOOTING
12.1
12. TROUBLESHOOTING
If an operating difficulty is encountered, check the
following list of possible problems and solutions before
returning the unit to the factory or local Service Center.
Problem Possible
Solution
No Power Indication
Check for proper voltage at cigarette
plug. Reseat cigarette plug in the
socket.
Check fuses if using vehicle’s
cigarette socket.
Unit will not
complete test cycle
or shows test errors
Power the unit off, then back on. If
the problem persists, remove unit
from service and record the error
message.
No speed reading
during tuning fork
tests
Verify that unit is in Test mode.
Verify the proper tuning forks are
being used.
Verify unit is not in HOLD.
Verify that the unit is in maximum
range.
Unsquelch audio. Listen for
Doppler tone.
Lightly strike tuning fork to avoid
harmonics.
Remove unit from service if above
tests fail.
