My Hummingbird 535 fish finder is malfunctioning, help me please?

It is saying the depth is around 800 feet even when the water is like 3 feet deep.

The transducer is pointed in the right direction, so It’s not a matter of adjusting it.

I think the problem might be that the transducer isn’t getting power so the depth is displaying the maximum (which is around 800)


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what area does the sensor on a Hummingbird LCR4000 fish finder cover?

We obtained a used boat with the fishfinder included. It is a Hummingbird LCR4000 and I know nothing about it. My husband wants to know about the sensor. I think he is wanting to know if it senses the front, rear, 360 degrees, or what???? Please help. Thanks, Dawn

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