When turning on my tub at the breaker, the hot tub jet 2 starts immediately and won't turn off, I cannot turn on jet 1, the tub light stays lit and cannot be turned off, and there are 3 blinking lights on the display. It accurately displays the temp and I can set the temp up and down. It just doesn't turn off the jet. It got to the point last night where the temp got to 109 degrees and jet 2 was still running. I've tried power cycling the tub at the breaker and waiting a while before turning it back on. I've also bought and replaced the control panel at my dealer's recommendation. Replacing the control panel didn't resolve the problem. I need help. If I keep the hot tub off for too long, the pipes will freeze.

Thanks!
Eric