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Malfunction of 640 Medtronic Pump

Discussion in 'Parents of Children with Type 1' started by Dimitris D, Jul 14, 2019.

  1. Dimitris D

    Dimitris D New Member

    Jul 14, 2019
    My 16 year - old son's 640 Medtronic pump stopped working a month ago. The problem was the battery lid, so Medtronic sent me a new lid. However, we still had problems with the new batteries we used, because the pump rejected most of them. Finally, it worked but it started making rumbling sounds.
    Since I wasn't sure whether it worked or not, we started using our 11 year - old pump. I have been monitoring the 640 pump and I realised that there is no rumbling sound any more, the pump works normally (basal and boluses) but the batteries are out after 2 days, instead of 7 to 10 days that they used to work.
    Any ideas?

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