I have a Coast Spas Manhattan hot tub. The control panel is acting up. It shows the temperature and allows me to turn the spa lights on and off, but the buttons controlling the pump and temperature have suddenly stopped working. I turned off the power to reset the system and left it off for an hour. The buttons still won't work. The filtration programme still kicks in and the heater is keeping the tub at a constant 95 F (the default temperature when the system is reset). I have also bled the pump, but nothing seems to work. Any thoughts?

the membrane switches have become damaged or collapsed and replacement of the topside controls is necessary.