Hi All:

I'm having a FL "C" error that I'm attempting to sort out on my 1999 Artesian Piper Glen. It uses a Gecko MSPA-4 digital control pack with 2 pumps, heater, circ pump, 110 V light and ozone (230 V @ 50 AMP). I'd appreciate some advice if anyone could give it. First, a little background.

I bought the spa in 1999 and have used it continuously ever since. Everything was great until I had intermittent control problems in 2002. Eventually I had an FL "C" issue that would not resolve, even with replacing the pressure switch (BTW, the only Artesian dealer in Norolk/Virginia Beach went OOB in 2001, so I was on my own). With help from another on-line forum, I traced it to the board and a $.05 board connector that somehow had gotten wet and broke off due to being corroded. With help from others, Artesian was VERY nice and sent me a new main board FREE, even though my warranty had expired. I re-waterproofed the control panel seal, pack box and wiring, followed by replacing the main board (long process, but not that difficult). Everything has worked fine since, no problems.

The other night the kids were in the tub and somehow "nudged" the drain valve so the tub lost about 6" of water over several days (I was away on business). This caused the pumps to suck some air when the freeze cycle activated (the filters were only partially submerged) and when I went to get in the tub when I got back, I had the FL "C" error.

I tried all the "standard" stuff. I flushed the circ pump/heater circuit with a hose, re-set the GFI, turned it "off" for 12 hours, re-set the circ switch by screwing it down, then back up, removing the pressure switch screw cylinder and checking the spring, etc. I didn't remove the switch yet to clean out the bottom because the tub still held water. I was forced to drain it last night because freezing weather moved in (typical - I might add that ALL my tub problems occur in November or December!).

So, today I ordered a new switch. I'm HOPING that's the problem. The board looks "clean," I don't see any evidence of what occurred before. I do have a source for a replacement board at about $265, but I'm hoping I don't need to do that.

Anything I'm missing?

THANKS!