On (b)(6) 2016 the customer reported low total area on patient result with their hlc-723g8 analyzer.The customer reported that no results are printing, message that results is below linearity, low total area.Changed buffers and wash/hemo, no air bubbles noted, waste tank is emptied, performed a sample reset, says needle is straight, also runs with the caps off.Buffers are installed properly.All patient cgrams meets acceptance criteria.They ran new streak qc (quality control) are now running as expected.His initial call was from his qc specimens only.Customer requested a pm (preventive maintenance) schedule.The customer is unable to run hba1c patient samples.There was no indication of patient intervention or adverse health consequences due to the delay in reporting.
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