The affected part was returned to manufacturer's site for a detailed investigation: the unit was disinfected, opened, cleaned, checked and tested.A loud noise was heard during erc opening and closing.To fix the issue, the motor area of the erc was cleaned, lubricated and greased.Subsequent functional verification testing was completed without further issues and the unit was returned to service.Complaints database analysis revealed that no similar event on this device occurred since its installation in 2017.Based on investigation results and similar complaints, the reported event could be due to: - residues of dried fluids on the shafts, which obstruct the movements, generating noise; - wear of the unit ball bearing.
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