My depth gauge just flashes a zero. Tried different things to try and reset, still zero. Any suggestions on how to reset this gauge. It just has the up and down arrow buttons. Model # 3500

The transducer probably went bad.

Will start looking for replacement. thank you. Easy to reglue/ stick the new one in?

The hardest thing is usually re running the cable back to the guage. The tranducer should make a little slight ticking sound and if you put your finger on it, you should be able to feel it pulsating.

Thanks again Griff. Will check it out next weekend. Getting drive replaced this week, so no water time for me.