Weather Station Model 01535 is not reporting any rain fall during the last 3 rains. Right side screen changes to show Weekly, Monthly, Yearly and Last Rain (2/20/2017), however, the first 2 show 0.000". Rain gauge on far right side does not appear when it rain. I've cleaned the unit twice and poured water through but still nothing reported. Yesterday it rain 1/2" and shows 0.000. Unit is 4 months old, and Have all bars showing for signal strength. Need help in fixing or returning.