Hi Kevin,

Thanks for replying. This happens every single time a manual slew command is issued. I only tried a few times because the grinding noise makes me really nervous as my mount is only a few months old. Actually, shortly after I received the mount, I had to RMA it back to have the motor control board replaced due to an unrelated issue (won't power on). This problem is also observed with that control board (with every slew command) before it stopped working.

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