Troubleshooting - Lowrance X-28 Installation And Operation Instructions Manual

The X-28 can detect this invisible layer in the water, but the sensitivity
will probably have to be turned up to see it.

TROUBLESHOOTING

If your unit is not working, or if you need technical help, please use the
following troubleshooting section before contacting the factory customer
service department. It may save you the trouble of returning your unit.
Unit won't turn on:
1. Check the power cable's connection at the unit. Also check the wiring.
2. Make certain the power cable is wired properly. The red wire connects
to the positive battery terminal, black to negative or ground.
3. Check the fuse.
4. Measure the battery voltage at the unit's power connector. It should be
at least 11 volts. If it isn't, the wiring to the unit is defective, the battery
terminals or wiring on the terminals are corroded, or the battery needs
charging.
SURFACE LAYER
ABSORBS HEAT
FROM THE SUN
EPILIMNION
THERMOCLINE
MOST PRODUCTIVE
ZONE FOR FISHING
HYPOLIMNION
19