I went to the beach for 2 days, I have a Nox 600 that I love. running in beach1 or 2 , every once in awhile I'd get a bleep and maybe a number 2 or 4 on the box. When I would go back and forth with the coil it would go away sound and number.I checked the coil wire movement, no problem. I run in 0 GB. other than that machine worked fine. I'm still learning the machine. What do you think. thanks
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