I had just anchored when I heard an alarm on my ST60 Wind which read low wind. So I turned off the electronics, turned them back on and the ST60 Wind seemed ok, it even worked normally on the return trip. Put the boat in the slip, turned off everything but when I returned to the boat one week later the ST60 did not function. There is power to the unit but the wind speed reads 00 and the pointer just points straight up. What do you think, a new anometer? Remove and clean connections?