Customer reported that error message "head error" appeared on the twin roller pump module of the hl 20 machine during set up.No harm to any person was reported.A getinge field service technician (fst) was onsite and investigated the unit in question.The fst found that the belt kit was defective and needs to be replaced.It was also confirmed that the belts were due for replacement (replacement of belts in a service intervall of 12 months according to the hl 20 service manual).Thus the reported failure could be confirmed but no product related malfunction.The reported failure "head error" was investigated in a previous complaint on 2020-05-28.The following causes can be considered as the cause of the defective belts: belt profile error causing them to not run properly in the rpm pulleys.Different height of the two pulleys.Belt pulley profile error.Faulty belt tension.In order to avoid the reported failure the getinge sales and service will be informed to follow the instructions below in the hl 20 service manual referring to the hl 20 service manual in chapter replacement of belts on rpm (roller pump module) the following is stated: replace belts which are found twisted, have wear, cracking, or service life over 12 months.The product in question was produced in 2014-09-26 the review of the non-conformities during the period of 2014-09-26 to 2022-05-16 does not show any non-conformity in regard to the reported product and failure.There is no indication that manufacturing issues occurred during this time, thus production related influences are unlikely.The occurrence rate was calculated for the reported issue and it was determined that this is not a systemic issue.Therefore, no remedial action is required.The occurrence rate related to the reported issue is currently being monitored as part of maquet cardiopulmonary¿s trending program and additional investigations or corrections will be implemented in case of adverse trending.
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