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  1. My 12 year old Hot Springs Vanguard hot tub has a flashing red power light on the controller. It also has a red light on the ic board that indicates an un-plugged controller. In the past I have replaced the small circulation pump which is now working properly, I replaced the heaters and the heater control board a couple of years ago. I have disconnected and reconnected the LED lights and this did not correct the problem. I have jumped the pressure switch and that didn't make a difference, I have jumped the high limit switch and that didn't work. I bought a new controller and that didn't change anything. I have disconnected the light and jet controller on the inside of the tub and that has had no effect. What the heck am I missing???
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