My weather station is not reading dew point correctly, I have looked at the Ecowitts online graph and it fluctuates all the time and only discovered this now.
Currently, it is showing -38.7C
I am using Aercus Instruments WeatherMaster HP2550 weather station together with Weather Display live and Ecowitt GW1100, everything else seems to be working except the dew point. I have rebooted the GW1100 and checked to see if there are any other settings I need to change but everything looks fine.
That value is correct with a humidity of 4%, so I would suggest your humidity is wrong and perhaps your humidity sensor is failing! 4% humidity suggest you are in a very arid desert!
I changed the battery and in the Ecowitt dashboard for the sensor, it states that the battery level is normal but the humidity is still wrong, I will reset the unit and try again.
I have reset it but, it is still showing the same results, according to Green Frogs Website I have reset it by taking out the batteries and pressing the reset button for 4 seconds (because I have the solar unit) and waiting 1 minute before placing the batteries back in. So assume the sensor is gone