Terrova Problem?

My Terrova started acting up a while back and is getting worse. It all started one morning when I deployed it in the water the remote would not come on. After about 30 sec. it started to work but slowley...almost like it was trying to warm up. Over time it has gotten worse. The remote will take a while to come on and then even go off. Sometimes it will stay on but not control the motor. I changed the battery with a new Energizer and that didn't fix the problem.
Anyone have any suggestions?

You may have to do the "relearn" function, check the manual for the how to.

Check your battery(s) and all connections.

Sounds like corrosion or bad connection/battery.

Also make sure you check the connections at the back of the TM plug in the bow panel and under the plastic cover housing of the TM mount itself where it connects to the board.