Has anybody had any problems with the Hunter ET System, specifically the rain gauge? I installed the sensors last August and every time it rained the rain gauge only registered 1/2 of the rain that fell. The sensor was stored inside for the winter. Now the rain sensor doesn't register any rain for 24hrs after a rain event. This morning it read .06" even though there was no dew and it hadn't rained in two days. Temperature, solar radiation, and humidity sensors appear to be functioning properly.