I have had problems with the display unit for a while, but was able to resolve them or they resolved themselves. The display light would randomly go on and off every few minutes. That seemed to be resolved with the end of month internal reset most times. Then the outdoor humidity started reading 99% all the time, I think I went to the sensor and gave it a clean to resolve that (maybe not, I can't remember now). Now the display is showing all 8's for everything and all the wind directing arrows are showing at once, basically everything on the display is showing at the same time. I unplugged from the wall socket and the unit connected to the sensor (reset of course) but when I plugged the cable back in it went straight back to the 8's again. Now no matter what I do (reset, unplug, remove and change batteries) nothing changes.