PCI tune ok, but NCI tune not completing

  1. Recently we have found NCI tune not completing.  PCI tune is good as attached below, EM showing 1959 which is workable.

2. See the NCI tune. EM voltage showing high during nci tune and showing error. Is it EM issue or anything? We were having PCI tune mass issue previously. We cleaned ion source, checked filament is ok. After maintenance,  this is the situation. What should I check now?

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