Hello,
I picked up a used LA Spas HEET model and I've just wired it in and fired it up. When you turn it on you are supposed to set the desired temp first thing. I am not able to set the temp up or down, but the spa is heating. I turned it on about 4pm yesterday and its heated up to 100 by 6am this morning. Also the jet 3 button doesn't seem to do anything. I'm not sure if I have a bad topside controller, or if there are other issues.