When the water level gets stuck, the first thing to check is the System Diagnostic. At the home page, swipe left to right to open the left-side menu, then click ‘System Diagnostics’. Check out the Last Weather Call time stamp and Last Response received from server timestamp. If the response received time stamp is not recent, that means the controller did not receive any update from the weather server. If this is the case, there are a number of reasons. In firmware 2.1.9 we added the error code variable to help identify the error in the response. Since you have an earlier firmware, this variable doesn’t exist so we have to diagnose it in other ways.
If you want to use WU, you pretty much have to use firmware 2.1.9 as it’s the only firmware that currently supports WU.