The cause of "FC" is either a bad Speed Pot on the control box or the AC Tech drive went bad.

TEST FOR BAD SPEED POT:
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Unplug the table
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Remove the front panel of the control box and disconnect the only 3 wires on the Speed Pot Leave wires connected to all other switches.

3. Turn the table on.
If three dashes display in the LED window of the AC Tech then replace the Speed Pot
If still get the fault code then replace the AC Tech drive.