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Furuno fish finder trouble shooting

Old 09-05-2014, 12:19 PM
  #1  
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Default Furuno fish finder trouble shooting

I installed a furuno 1870F chartplotter/fish finder this Spring and have been very happy with the unit. Recently in Auto Fishing mode, the unit has trouble finding the bottom (hunts changing from 40 to 4000 feet).

The transducer is clean. The bottom is solid in manuel mode (but the depth will not read out).

I plan to re try my old 1650 Furuno unit to make sure the transducer still works. Furuno suggested clearing the new units memory.

Any thoughts or cheap transome mount 10 pin transducers for a trial?

Thank you
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Old 09-05-2014, 12:27 PM
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A P66-10F is a 10 pin......you can just hold it over the side.
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Old 09-05-2014, 04:56 PM
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how much do they run?
thank you for the reply
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