Trim tank pumps
Afternoon , do the trim tank pumps A340/330 have any overheat protection if the pumps or pump do not switch off after the trim tank is empty? ( I.e failed amber indication inline on the status page, Right hand Trim tank pump fault on ecam) Assuming it is not an indication problem are the dangers considerable ref long term running with an empty tank and fuel vapours etc, many thanks Pudd.
P.S I know there are 2 CB's in the avionics bay which will disconnect the pumps if required.