1. Make sure ALL the screws on the box are tight and I mean all of them. The main issue here seems to be a ground at the mounting screws for the coil connector on the box. Just be sure to check and tighten them all.
2. Try a hard reboot. (This is something you should do each time that you install new batteries or a freshly charged battery pak, just for smile's and giggle's).
1. With fresh or freshly charged batteries, turn on and set up to hunt
2. With power on, remove the batteries
3. Wait a couple of minutes
4. Reinstall batteries
5. Restart
You might have to try this at least a couple of times. If after a few times, it don't help, it ain't gonna.
3. With the battery pak removed, clean the tabs inside the box where the contacts are and the contacts on your battery pak. Use an eraser for this.
4. If you feel comfortable about taking apart your XLT and removing the circuit board and I would only do this if the problem developed gradually and then steadily became worse. Check all of the connections and make sure they are tight and reseat any of the push/snap in chips. If your XLT is still under warranty / If you haven't done this before / If your really not sure about it. You should go ahead and send it in. You don't want to cause any damage to the circuit board.
If none of these thing's work, you should send your XLT in. If it is still under warranty it's free. All you will need to pay is the shipping to the factory or one of the repair centers. They pay the return shipping and your machine will come back just like new.
If these repairs work for you. I would suggest repeating them every few months. Then clean and wipe down your XLT from the coil to the box. Remove your coil cover and clean it too.
