Depth Finder flashing zero

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bkjayhawks
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Depth Finder flashing zero

Post by bkjayhawks »

I have a 2009 Cobalt 296. It has a depth finder that was part of the original build. Lately it has been flashing zeros on the depth finder gauge. It worked most of the time last summer but doesn't seem to work this year. I have no idea where it is and if it a simple cleaning issue or if something needs to be replaced. Open to ideas. Thanks!
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AsLan7
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Re: Depth Finder flashing zero

Post by AsLan7 »

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So glad you found us bkj.....and sorry to hear about your depth finder woes.

We solved the flashing by topping up the transducer with the blue anti freeze used to winterize. It's about the size and shape of a hockey puck glued to the bottom of your hull. Unscrew the top and fill'er up. You can search my depth finder posts early on. I believe I have a pic or two.

And welcome aboard mate.

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2002 Cobalt 262
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food

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bkjayhawks
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Re: Depth Finder flashing zero

Post by bkjayhawks »

Unfortunately mine doesn’t have a puck on it. This is what it looks like.
SportDek
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Re: Depth Finder flashing zero

Post by SportDek »

The Airmar transducer is located under the engine on the hull. Just twist the jar-like top off and you can top it off with the pink RV antifreeze as well.
2003 Cobalt 200 BR VP 5.0 GXi C DP - Current
2005 Premier Pontoon 235 Sport Dek 225 HP OB
1997 Four Winns Horizon RX, 4.3 VP SX
1994 Nitro 150 HP Evenrude OB
1977 Harris Flotebote pontoon, 55 HP Johnson
1972 Larson Mercruiser
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AsLan7
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Re: Depth Finder flashing zero

Post by AsLan7 »

SportDek wrote: Thu May 09, 2024 6:41 pm The Airmar transducer is located under the engine on the hull. Just twist the jar-like top off and you can top it off with the pink RV antifreeze as well.
./
So glad you found us sportdek. Missed ya' the first time.

And that's exactly what was wrong with ours btw. Hopefully he can find it. Still waiting for his pic.

And welcome aboard mate!

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2002 Cobalt 262
&
2005 Cobalt 263
496 MagHO
(sold )
Erie, PA
Currently boatless (for now)
will fly for food

(CChat moderator)
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