Troublecat

HI ALL - I'm Troublecat a newbie from Canada, and I've just recently (I've had the thing for 3 weeks) purchased a Tundra hot tub by Arctic Spas, and it doesn't seem to ever shut off, I was under the impression that it would run (the jets) for 20 mins 2 x a day, as that is how the hot tub set up dude programmed it, but then my hubby shut off the damn breaker (which of course is my fault) and if we leave it - it will just keep running, how do I set my filtration system so it's not running all the time??? I appreciate all of your expertise and really hope someone can help me, THANKS!