Report "Right after powering the dehumidifier on, the compressor starts running and just keeps running long after the coils are a solid block of ice. the compressor never shuts off.unit is 2 years old, basement is 70 degrees, 50% humidity.worked fine until a week ago, when compressor failed to turn off after coils iced up. have had 3 other units do the exact same thing. is it the sensor gone bad or the control board? and which sensor?"