I have been an Artic Spa owner for just about 10 months now and starting getting the FLO error about 2 months ago. At first it was more of annoyance, but just a couple weeks ago I found my tub would never get up to temperature. We called the supplier and requested service which is supposed to happen next week. Apparently they need to replace the some parts, maybe the entire Onzen system. What scared me is how "matter-of-fact" he made it sound when I described the problem and told me the cause.
After finding this thread I am beginning to see the truth behind his attitude. Looks like this problem with the Onzen systems is much more common place then they probably want advertised. It would seem that Artic Spa doesn't live up to the reputation for quality they brag so much about in the brochures.
Still with all that I am hopefully that when the technician fixes this it won't be a problem again.
