74
Symptom
Possible Cause
Unit is turned on, but no display
and motor is not running.
Check for bad connections, proper hook up polarity, and
make sure you have a good, fully-charged battery.
Unit is turned on and the motor is
running, but there is no display.
Battery voltage too low. The unit will show no display if the
voltage is below 8 volts. Check voltage while unit is running.
Unit runs well for a short time, then
lights flash randomly or unit quits.
Bad battery or connection. Voltage may be good when
checked, but will fall as unit runs.
Unit runs and shows display light,
but does not read depth.
Transducer is not plugged in or not in contact with the water.
Unit works, but needs high gain to
see bottom or targets.
Transducer is not aimed correctly or needs to be cleaned.
19° transducers will have trouble seeing small targets deep.
Unit works, but has too many lines
on the display. Can’t distingush
signal targets.
Improper transducer adjustment. Also, gain may be set too
high or, if gain is set to minimum, switch to the LP Mode.
Unit works well when sitting still
or at when slow trolling, but loses
reading at higher speeds.
Improper transducer type, installation, or adjustment causing
loss of clear water flow across the transducer when the boat
reaches a certain speed.
Unit shows noise when engine or
electric motor is turned on.
Defective engine or electric motor. Also can be improper
grounding or missing ground in electrical system.
I.R. does not work. Can’t eliminate
interference from other depth
finder.
Gain may be set too high or the transducer is weak. Also,
check for ice or debris buildup under the Gain Control.
Storage & Prevention Tips
●
Store in cool dry area. Do not store
in a sealed container like a bucket
or Soft Pack, trapping moisture.
●
Be sure an SLA battery is fully
charged before storage.
●
Clean the flasher body and screen
with a soft cloth and a mild
detergent. Do not submerge in
water or other liquids.
●
Do not expose the body or display
to chemicals such as fish attractant
or insect repellent. Damage to the
surfaces can occur.
●
Do not submerge the body in
water or subject it to heavy wave
splashing. The flasher housing is
weather-proof for most conditions,
but is not waterproof. Water
damage is not covered
under the warranty.
General Troubleshooting
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