My Hot Tub stop working due to the code show, SF which indication there is a blockage of sort for the Intake,( there was no blockage ) I hit the buttons to start the pump, it would go on for a few seconds. I replace the switch and it started up right away. The tub got hot over night, I thought all was well, then when I went use it. I hit the button for the Full Flow and then it stopped and I am right back where I was. I am close to getting a technition in, but would like to avoid that.

Thanks