Pool and Spa
Questions about Pool Repair? Ask an Expert Online.
If you only have a one pump spa then you either have a bad pump in high speed or more likely a weak breaker for the spa. When you change from low speed to high speed the electrical draw from the pump increases a lot so if you have a weak breaker then it will trip. I have also seen high speed in a pump cause a dead short and trip breaker but it is cheaper to replace the breaker then test to see if the spa still trips off before you resort to replacing the pump.