Here is the link to your the lowrance web site. the trouble shooting guide says that if you tried to it on another boat than you might need to take it in for service. but there is a section that explains how to do a soft reset on the unit. you might try that.
http://www.lowrance.com/en/Support/Troubleshooting-Guide/Depth-Reading/
please rate and comment on your experiance with fixya.
Check the connectors, reconnect firmly
1.Make certain the transducer is pointing straight down. Clean the
face of the transducer. Oil, dirt and fuel can cause a film to form on the
transducer, reducing its effectiveness. If the transducer is mounted
inside the hull, be sure it is shooting through only one layer of
fiberglass and that it is securely bonded to the hull. Do NOT use RTV
silicone rubber adhesive or Marine-Tex epoxy.
2. Electrical noise from the boat's motor can interfere with the sonar.90
This causes the sonar to automatically increase its Discrimination or
noise rejection feature. This can cause the unit to eliminate weaker
signals such as fish or even structure from the display.
3. The water may be deeper than the sonar's ability to find the bottom.
If the sonar can't find the bottom signal while it's in the automatic
mode, the digital sonar display will flash continuously. It may change
the range to limits far greater than the water you are in. If this
happens, place the unit in the manual mode, then change the range to a
realistic one, (for example, 0-100 feet) and increase the sensitivity. As
you move into shallower water, a bottom signal should appear.
4. Check the battery voltage. If the voltage drops, the unit's transmitter
power also drops, reducing its ability to find the bottom or targets.
You may perform reset as well if issue persist. please post the outcome of steps that you have done.
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After doing a hard reset the depth finder would work in 3 or 4 feet of water but would not work in deeper water of 30 feet. Used a borrowed working depth finder and found it would also not work in deeper water. Took my depth finder and used it on a working transducer on another boat and it worked fine. So have determined that it is my transducer that is not working. I have ordered a new transducer from Lowrance.
Thanks.
Doing the reset did help it to start working again but only in the shallow water. We concluded we needed a new transducer and have ordered such.
Doing the reset did help it to start working again but only in the shallow water. We concluded we needed a new transducer and have ordered such.
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