I have a swampcooler with 2 20 amp breakers they keep tripping 1 or the other breaker when the cooler comes on . it runs for 5 to 15 seconds . the motor was replaced yesterday by a friend . the old motor had seized up . also it has a thermostat on it . already checked the breakers there good . Can't figure out why each breaker trips and not both at the same time and why there kicking out .