POSSIBLE MALFUNCTIONS AND TROUBLESHOOTING
Malfunction:
the sonar shows zero depth
.
Additional attribute:
the device turns on and off normally with
the
right button.
Cause
Solution
Insufficient sensitivity
Increase sensitivity
Sensor loosely screwed into
Screw on the sensor more tightly
the battery housing
(manually, without tools)
Signal cable break
Contact an authorized service
center
Malfunction:
image on the screen blinks and/or freezes, or
the
device itself turns on and off.
Additional attribute:
the battery icon shows its low charge.
Cause
Solution
Low battery
Replace the battery. If it does not help,
contact the service center
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