You should be able to swap the wires at the switch to get the switch to go from OFF to LOW to MEDIUM to HIGH. That assumes there are 4 wires to the motor. If there are only two, there are resistors in the switch. Did the original motor work the way you want? If you had someone do the work, it sounds like they wired it incorrectly if the operation is different than original.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.