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Catalina 25 Specific Forum

Depth sounder

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theshepirate
Deckhand

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USA
19 Posts

Initially Posted - 07/11/2012 : 20:36:35

Hi everyone! I have a question about a non -working depth sounder. I have a Catalina 25. When we got the boat last year, the depth sounder worked fine. It is a Standard Horizon model, with an airmade?(begins with a anyway) It is non through hull. It is located just aft of the fin keel. I opened the transducer unit and saw that their was still some mineral oil in it. I cleaned it out and put in petroleum jelly,(didn't have mineral oil) got out all the bubbles and replaced transducer-nothing.
The electrical is properly hooked up. I bought some mineral oil. so tommorow I will clean out the jelly and replace it with mineral oil.
A friend told me that there may be a sequence od button pushing to sync the transducer with the unit, I will investigate tommorw.
So, so far, nothing on screen of unit, electrical is still hooked up the same as last year when it worked.
Can anyone offer some advice on how to get this working, we have to stay close to home port without this unit working.
Thanks!

TheShePirate

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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts

Response Posted - 07/12/2012 : 10:20:04

Does it give any display at all or does it just appear to be dead? I would think the petroleum jelly would work fine if all the air gaps and bubbles have been eliminated.

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Arlington
Navigator

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USA
196 Posts

Response Posted - 07/12/2012 : 18:19:47

ShePirate try to Google you Standard Horizon Model No. They are pretty popular. You can still find the installation instructions and manuals on line as well as places to send for repair, if you so choose.
Doug

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theshepirate
Deckhand

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USA
19 Posts

Response Posted - 07/12/2012 : 20:46:15

Joe, the screen appears to be dead.
Doug, I have all of the manuals to every piece of equipment on the bo. The PO was meticulous in keeping these records. I did try the troubleshooting section in the manual, but need to do it again, on a fresh start tommorow.
Thanks for all your thoughts.

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Voyager
Master Marine Consultant

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USA
5352 Posts

Response Posted - 07/12/2012 : 22:12:17

Welcome to the Forum! We can use another Pirate here.
Check all the electrical connections. May be some corrosion which could have been aggravated by moving the transducer. Check the power connection and fuse for the display for 12.6 VDC using a voltmeter, check the transducer plug into the display for corrosion (may have worked itself free) and check the transducer cable for a broken wire. If you gently bend the cable running along from transducer to display plug, you may find a broken internal wire by feel. This kind of repair would take some care and skill but using the correct crimp connectors would fix it for a few seasons.
I replaced my original with a low cost depth gauge. I kept the old Aluminum and Glass housing and squeaked the new display mounted inside.
I mounted the transducer shooting through the hull using the toilet bowl wax trick.

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theshepirate
Deckhand

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USA
19 Posts

Response Posted - 07/16/2012 : 20:38:50

Thank you everyone for your advice, we are going to put in a new one, nothing works.
Oh, and I really messed up big time. I left the battery switch on both and the main swich on for 16 hours with the VHF radio on and no motor running! Drained all the batteries, now the motor won't even pull start, and naturally the electric start doesn't work either. Normally our outboard that has a generator in it keeps the batteries topped off all season, but have not been out that much this year-only once to tell you the truth, so the batteries must have been real low.
Have to buy a battery charger, doe anyone know if there is a special kind for deep cycle batteries?

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delliottg
Former Mainsheet C250 Tech Editor

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USA
4479 Posts

Response Posted - 07/16/2012 : 22:30:01

We use a [url="http://www.harborfreight.com/automatic-battery-float-charger-42292.html"]Harbor Freight float charger[/url] to keep ours topped off while in the marina. It has an automatic shut off so it won't overcharge our two deep cycle batteries. We have a solar panel that helps keep it up if we're on the hook.

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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.