I have a PDC Spa with air pushbuttons, temperature knob, and temp display all located in a Top-Side control panel. It looks exactly like the 4 button TecMark panel (which I've been pricing in the event I need to replace it). The buttons and temperature control work fine. The LED display usually works fine, but sometimes it goes blank and other times it displays strange letters and numbers. I have to turn off/on the main breaker which usually resets the display. I'm guessing it might be a moisture problem, or a bad connection somewhere. Has anyone run into this sort of problem before? Is the panel serviceable in any way? I could also use some advice on how to remove the panel. Also, I'm assuming the problem is at the panel, but could it be something as simple as the temperature sensor? Thanks for the help!