Miele S140 Operating Instructions Manual page 39

If the vacuum has overheated the
temperature limiter will automatically
turn the vacuum off.
This can occur if, for instance, large
articles block the suction tube or when
the filter bag is full or contains particles
of fine dust.
A heavily soiled exhaust or dust
compartment filter can also be the
cause of overheating. In this case,
please turn the vacuum cleaner off.
Check for any blockages and allow the
vacuum to cool down for 30 minutes.
39