Hi, my tub was installed in 2001. About 4 years ago, I had to have the switch replaced, because the tub could not be turned off (without throwing a breaker). My problem now is that while the switch works on low, when I press the high button, the motor "tries" to speed up--but does not. The jets have only a fraction of the power they used to have. My question: has the switch gone bad again, or has the motor played out? Thanks, Roger Courts