== Lid not closed completely ==

It may happen that the Lid is not closed completely, although the sensor claims it is in place.

* Make sure the bias voltage is turned off (in case it is already bright outside.
* open and close the Lid again

== Emergency Procedure ==

Find attached the emergency document for manual lid operation. 

Further documentation about the automatic lid, can be found at https://trac.fact-project.org/browser/firmware/ShutterController/docs