I have a 98 Calspa Genesis. A few weeks ago i could not turn the jets on without the tub shutting down. And the heat light would begin to flash in a sequence of 3. Only the recirculation speed would run (constanlty). I found a similar problem here on Spaforums suggesting I remove the filter and run it. It then worked, so I bought a new filter. Only then did I realize the heater would only turn on if the jets were turned on. So whenever I want to turn the heat up, I must turn the jets on a few times and let it warm up. Could I have damaged something by trying 2 run the jets with too little flow? I would appreciate any help. Thanx, Kyle

You didn't damage anything, probably a pressure switch that needs to be re-calibrated or replaced.