Lowrance Temp Sensor Problem

[quigley595]

Hi folks,
I have a Lowrance 337CDF.

When I display the water temp, it reads 0 and flashes. Since the temp sensor is built in to the transducer, does this mean that is the problem???

or is there some setting I should check. I thought I had a good look through the settings, but there isnt much there.

Its not a real big deal for me, but any help would be appreciated.

regards
Mike

[quigley595]

Anyone have any ideas??

Mike

[quigley595]

Could always drop a thermometer over the side I guess

Mike

[quigley595]

Surely someone must have an idea?????

Mike

[quigley595]

Is there maybe an ausfisher on the sunny coast with the same model??? maybe I could try my unit on your transducer??? or try yours on mine??

I would love to get to the bottom of this.

Mike

[Heath]

It'll be your transducer, the temp sensor has probly gone faulty.

[quigley595]

Heath,

Thanks a million for your reply. I was thinking that the transducer might be the problem, but didn't know how to test this (short of putting my head unit onto someone elses transducer).

I wonder can I use say a multimeter or something to test the temp from the transducer? I'm guessing probably not.

Thanks again Heath!

regards
Mike

[trev1]

I had a similar fault with my LMS332. turned out to be a loose battery connection. Everything else in the boat still worked fine ( starter, trim/tilt/ GPS/ sounder) just the temp read all over the place and sometimes not at all.

[blaze]

If you can islolate the two wires in the plug that go to the temp sensor and put a multi metre across the pins and then dip the transducer in warm/hot water you will see a movement in the ohms reading on the meter.
cheers
blaze