Warning E15: current detection - unable to turn off current

Warning E15: current detection - unable to turn off current

a) This failure means the “current testing – current turn-off failure”. Use it again after restarting the instrument. If this failure occurs again, find out the problem. If no problem is discovered, it will be caused by interference. At this time, continue the use by ignoring this problem.  

b) Plug off the main control board J12 and restart the instrument for retest. If this failure is eliminated, try replacing the DB9 wiring harness and laser power supply.

c) If, however, this failure is not eliminated, try replacing the current Hall sensor and main control board of main console.​
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