Invalid temp

[marathonman]

I have a lowrance hds9 that is reading invalid water temp reading on my 3n1 transducer.
Assuming the transducer is bad.
I unplugged and replugged back in and still get the same this device invalid. I tried a different transducer plugged into that port on hds9 and it read water temp fine.
Just looking for input.

Stupid thing read fine a week ago.

[Basshopper]

Did you verify that the data source for temp is selected correctly along with your AI3-1?

[marathonman]

Yes verified it is selected.

[NoCAL]

Invalid almost never means a bad transducer. Put it in the water, do a hard reset, disconnect and reconnect the transducer. It’s highly unlikely that the transducer has gone bad. It just does not happen that often.

NoCAL

[marathonman]

Unplugged and plugged back in several times. Still eventually shows invalid.
Installed new transducer and no problem for 4 days of fishing.
Think I have it fixed.

[bgibson]

Unplugged and plugged back in several times. Still eventually shows invalid.
Installed new transducer and no problem for 4 days of fishing.
Think I have it fixed.

But you didn't say you have done a Hard reset?