I would start by doing the following:
1. Check static straps. Verify both are touching the ground with no debris wrapped around them.
2. Check for shorts to frame. Make sure you are above 100k ohm's of resistance to frame with battery disconnected.
3. Verify there are no wires open or shorted in the over mast cables.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.