02-01-2011, 12:57 AM
Have you tried calling their customer service? Here is the number 1-800-816-0810. Unless you have another transducer it might be hard to trouble shoot. Some times the owners manual will have some things you can try. I know when I have had problems like that, I called customer service, they told me to ship it to them and depending on how old your finder is they will repaired them for free.
[signature]
[signature]