HB helix 15 temp not right

My last trip out the temp started showing crazy temps. Any way to calibrate ? Or is it a bad TX?

It could be the transducer for sure. This might help you troubleshoot it. Just a moment...

Low battery power will also cause stuff to ack wonky. :dono:dono

I had a 15 and it would do that on occasion. Most of the time it read right. It never happened often enough for me to do anything about it. Sold the boat and that fixed it LOL