Depth Sounder on 2018 C30S

[JSimmons]

My depth sounder stated acting up on my last outing. At first, it was indicating a depth that was clearly wrong and then the Garmin display would flash on and off which I learned was the Garmin seeking a signal. Today the Garmin shows no numbers in the display and the dialogue box on screen is not flashing.

I have been reading on Tugnuts about antifreeze so thought would check it. Problem #1, no idea the transducer is located. Can someone help? Also, any trick to adding antifreeze?

Beyond checking anti-freeze, does anyone have anything else I might try?

 

[Rocky Lou]

Mine is located in the main berth area under the wooden hatch cover at the bottom of the stairs. The shower sump pump is also located there. The GT-15 is attached to the hull by adhesive, usually 3M, that failed in my case requiring reinstallation of the transducer housing before I could refill the antifreeze. As frequently noted, be sure to use the correct type of antifreeze noted in the transducer installation manual.

 

[JSimmons]

Thanks. Going over to the boat to check it out now!