The lever tells you which tank you’ve selected and the color indicator tells you if that tank has propane in it. For example if your lever is pointed to the driver’s side tank and the indicator is green, then all is good. However if it is red, then the switch has automatically switched to the curb side. Turn your lever to that tank and the color will go green. So now you know you have one empty tank to get filled before the other tank runs out. This is assuming all valves are open on the tanks. I always switch the lever to the tank in use at the time. When I fill my empty tank, I still leave on the tank currently in use. That way I know I have a full tank in reserve. Hope that helps understand the relationship between the lever and the switch.
Gunther, Sheri and Calvin
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