We have one. It is very sensitive to overheating when the filter (washable) is blocked, and switches of, recovering in about an hour.
Clean the filters!
Steve, January 2007
Check there is no kink in the flex.
Sometimes people don't bother to wind the flex up properly, and it kinks and twists which breaks one of the cables cores.
Doesn't happen very often but might be the cause.
Don't know about a cut off switch though.
