The plug has been sitting in the same socket for years, it could even be
a bad plug, a wire just came loose . You need to trace to where there is
no power, It could be the motor but usualy you hear it humming trying to
start If plug is good it is the switch you could bypass the float
switch and run it by plugging it in. The higher the pump, the less ft
in height it has to pump the more gpm it will pump, lower would just
drain more water out of the soil, but if basement is always dry I dought
it matters. If you never use it a 40 $ replacement will do but you will
probably fix it