Good evening all. I just went out to soak and saw an FL1 error message. Previously this was a simple "airlock" and I was able to fix. Well, this time I can't get it cleared. I took the filter off and their is suction which tells me the filter is not clogged. It appears to be flowing into the filter compartment. I just replaced the micro-filter about 5 days ago. The manual said it could be the "flow switch" is stuck open. Can anybody tell me if if there's something I can do before I call the service department? Thanks.
