I bought a used boat with a lowrance Elite-4x HDI in May. It worked fine until just the other day it won't power up. I have 12V of power through the power cord to the connector.

Question edited for a lot more clarity. All question need FULL 'make model (what it is)'.
Question moved from 'Power Computers' to Lowrance.

Your problem is in the boat. You either have a bad electrical connection, or a bad connection TO the transducer or the transducer itself is faulty. You can return the transducer under warranty or return it for testing. It is unlikely to be the internal memory IMO.

Others report the same issue

https://www.thehulltruth.com/marine-electronics-forum/614638-lowrance-elite-7-hdi-randomly-restarts.html

Have you tried a Hard Reset.

Do you mean the Lowrance Elite-7 HDI? Most Lowrance manuals are available here: http://www.lowrance.com/en-US/Support/Documents/ . Click on the Elite series and then scroll down the list in the Select Product window. Then look at the lower right side of the page. The Operation manual and installation guide are both available. The direct link to the operation manual is currently http://www.lowrance.com/Root/Lowrance-Documents/US/ELITE-7_HDI_OM_EN_988-10423-001_w.pdf .

I hope this helps.

Cindy Wells

Hey Neil, why is this necessary in simulator mode... it only matters in the "real world".. anyway..
https://www.lowrance.com/Root/Lowrance-Documents/GB/MARK_ELITE_SERIES_CHIRP_OM_EN_988-10812-002_w.pdf

Hey Anon,
try this..

https://www.lowrance.com/Root/Lowrance-Documents/US/ELITE-7_HDI_OM_EN_988-10423-001_w.pdf

Hey Anon,
Here is the manual,,

http://www.lowrance.com/Root/Lowrance-Documents/US/ELITE-5-7_HDI_OM_EN_988-10647-001_w.pdf

Hey Ken, My unit did this same thing.. I unplugged all the connections, replugged them and it has worked fine ever since??? ..just my personal experience...

The speed of your boats travel only directly affects your sonars ability to read the water depth.
your backtrack feature is GPS based. These is not affected by your boat being on plane.

Your screen being black sounds like your sonar is losing bottom contact due to air bubbles passing under the transducer. This is a common occurrence with most boats.

Add some details regarding what your seeing and we can help you get a better handle on your difficulty.

Hey Anon
The transducer installation is more important than anything.. next to correct wiring! You must make sure the mounting is good,,, if its outside the hull, make sure its sitting 1/16th below the hull with no obstructions.. if its inside the hull, the medium you used to fix the puck to the hull must be porosity free and the puck sitting as level with the WATER as possible..
Now, take the manual to the lake with you and DO NOTHING but read the manual and apply what you read to the unit,,, read -repeat - read-repeat.. forget about fishing... now read-repeat and learn... IF nothing seems to be reading correctly.. its probably the transducer installation.. YOU DID use a/the transducer specifically for this unit!!

Hi Everyone, Has anyone install EP-60R Fuel Sensor unit to Elite 7 HDI ? I have hustle making it work. Appreciate if anyone successfully solve similar problem. Dan