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Info has been added to the FIES trouble-shooting section on how to observe with FIES when StanCam, which is used as fiber-viewing system, is not properly cooled by its CryoTiger. Even at relatively high temperatures (-40 C), it is still possible to observing source with FIES. In case that there is a problem with the cooling of StanCam which effects normal imaging observations, it might still be possible to observe with FIES normally.