My Aurora II's jets began a strange action last week. While my spa was not in use, they seem to have gotten stuck in a "one second on and one second off" cycle. I am not able to deter this cycle by pushing the jest button. I pulled the emergency stop and returned it later, in hopes that this "re-set" would help, but to no avail. I still have "SWISH - REST - SWISH - REST" as long as power is hooked to it. Any ideas?