If I turn it on to high speed, my swamp cooler "turns" but it's the same speed as if it were on "normal." What gives?
Other clues: when it's on "high" it has very short lived bursts where it blows a little extra.
Turns out it was a loose belt. Once I tightened the belt between motor and pulley then it worked fine. Even the "low" speed was higher than what the old speed(s) both used to be.
