Temp not marking correctly - 525ST-MSD transducer

Temp not marking correctly - 525ST-MSD transducer

Postby echavez1 » Mon Dec 18, 2017 2:46 pm

I have the 525ST-MSD transducer/f block

It's been working fine overall, but the temp stopped marking properly, it seems to be about 10degrees colder than the water temp is actually at.

Is there a way to fix, adjust or test it either on the water or off?

Thanks,
Cesar
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Re: Temp not marking correctly - 525ST-MSD transducer

Postby Deep Blue Sea » Tue Dec 19, 2017 9:14 am

echavez1,

It sound like the thermistor which that is internal to the transducer might be going bad, it rarely the cable or sounder.

There is also an option to replace your speed insert with one that contains a replacement temp sensor. You might discuss the various options with your dealer.

Deep Blue - ;)
Fishermen know that the sea is dangerous, and it’s storms terrible, but they have never found these dangers sufficient in reason for remaining ashore." — Vincent Van Gogh
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Re: Temp not marking correctly - 525ST-MSD transducer

Postby Johnny Electron » Thu Dec 21, 2017 5:23 pm

You might also check your temp offset setting in the unit for the sounder. It could be that you can just adjust (calibrate) the temp there. The forum also has postings describing how to OHM out your transducer temp sensor to tell if it is bad or not.
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Re: Temp not marking correctly - 525ST-MSD transducer

Postby echavez1 » Wed Mar 07, 2018 5:32 pm

Thanks for the response guys. I'll try the offset and if that does not work then I'll look into the replacement speed insert with the temp sensor. Would you happen to have a part # to get a quote on the cost for it?

Thanks,
Cesar
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Re: Temp not marking correctly - 525ST-MSD transducer

Postby Snips » Thu Mar 08, 2018 9:58 am

echavez1,
The temperature sensor for that transducer is in the main bronze housing which is a component that Furuno USA doesn't offer. However if you contact Gemeco (843-210-7000) and give them the part number they may have them available.

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