Do you have a Eppendorf 5424 micro centrifuge in your lab that is displaying a ‘lid error’ message as pictured below ?  You may find this article useful.

It is worth checking to see if the lid of the centrifuge springs up at the end of the run, if it does not then it is quite possible the fault is caused by a broken spring inside the lid.

The above picture is a birds eye view of a Eppendorf 5424 centrifuge with the lid cover removed.  You can see in the top left of the picture that the lid spring leg has broken off and therefore does not enable the lid to spring open at the end of the run or hold the lid upright.

The Eppendorf 5424 is a current model and at time of writing parts are still available from Eppendorf.  Depending on where in the world you are located you will need to contact the manufacturer for your local distributor.