I have replaced the heater to my tiger spa. I cannot find any reset button, so I am assuming it is the power down reset version. I am getting the green light and power to the circuit board. The two red lights, which one is the HTR, is completely off. There are two small screws in the back of the control pannel of the heater, but I assume they are just screws to hold the pannel together. I cannot find any reset button. It worked and then I emptied to clean some more. I understand it may have kicked off because the filter was dirty, but not it will not kick back on. Does that mean that I have a bad relay or I just need to find the reset button or did I burn up my heater (don't see any burnt markings at all anywhere) or ???