Yes, it can easily be repaired. You can take the vacuum apart and
replace the switch with another original. I don't like to spend money
or waste time. I pried the old switch out and wired in a rocker switch
from something else in place of the original. The wires from the old
switch had enough slack to allow that. Then I hot melt glued the switch
in place. I could have used epoxy instead. These are great vacuums, but
the switches tend to go bad.