I have had an IH mill running Mach3 for several years now and it has performed very well.

After a 3 month break from running the mill, I cranked it up again and started getting a Reset, Limit Switch Triggered, both when the mill was working and when it was just sitting there. I am sure it is some type of noise problem. Any suggestions on how to diagnose this? I wish Mach3 had some type of error log that would give the source of this problem. Does anyone have any suggestions to troubleshoot this?

Thanks in advance for any suggestions.
Jim