My LS100DX was just filled up about 3 hours ago. Starting water temp was about 70f and have it covered and set to heat to 100f. Since I plugged it in, it’s warming slowly which is expected, but the jets keep kicking on. Are the jets (or similar noises) supposed to run while it is getting up to temp? If I go and shut them off, they will restart within 10 mins. They have been running for about 2 hours straight now.