I just took delivery of a Cyclone 3020 HD with a separate pump station and generator fuel tanks. During delivery, the delivery guy told showed me there is a rocker switch in the control panel which when pushed up is supposed to read the remaining fuel in the pump station, and when pushed down is supposed to read the generator tank. It works and reads the pump station tank when I push it up, but I get no reading for the generator fuel tank. I just put 7 gallons of gas in one tank and 10 in the other so I would expect to get a reading on both gauges. The 7 gallons is in the generator tank. Does anyone know if this is just not enough fuel to read out, or is my gauge defective?