Kids were in it the other night, had the temp on 104 and when they got out they didnt turn it down. Now both the "ready" and "power" lights are blinking, the temp display reads 104 but the water is not warm. This happened once last year and all I had to do was open the breakers for a minute then close them and all was fine.......that doesn't work now ....I still have water circulation so its not a circ pump issue. Any ideas? I haven't had a chance to open it up and look at the control board yet, but I guess thats as good as any place to start????

Thanks,
Mark

Take the filters out and reset again. If that doesn't do it then the circ pump may be clogged or the pressure switch in the heater may be bad. You have to eliminate the dirty filter possibility first though.