Dirty Transducer

[mike fronczak]

The sonar portion of my Lowrance 350 is not working properly. The boat was left in the water by the previous owner and the transducer has a hard coating on it from that. How do I get that hard coating off with out damaging the unit. I tried a shotch brite pad, it didn't do much of anything. I need somtheing to loosen up the harded grime, will bottom cleaner/muratic acid melt the plastic?

[ray koziatek]

what was the container made out of that the acid came in ? sorry, i probly wouldnt use any abrasive material on the trans. expermint with a less costly area of the boat with some lime away products .

[slickmick9514]

You can use standard sandpaper without harm to the transducer. Anything more aggressive than 100 grit and you will be asking for problems. Solvents of any kind is a bad idea. you can also contact the manufacturer, however be prepaired for them to say dont try to clean it and just replace it, thats bogus. After its clean get a bottle of transducer bottom paint and follow the directions. The paint will fill in the imperfections and make the transducer last longer. Two coats will usually last the season.

[GAMBLER]

If the unit is a LMS 350A, it could be the transducer is on it's way out. I had the same problem, and had trouble getting new transducer. It now sits on my dash as a GPS with the fish finder part turned off.

[Tim Bromund]

you can still get new transducers for that unit from Lowrance's parts company LEI-Extras. New one costs $51.95

the one you need is the HS-WS in the upper left corner of thpage on the link below.

http://www.lei-extras.com/store/search. ... cers+20%B0

Tim