Salvo wrote:
Thanks for the links and info. I now know I can fill the tank without complications should the gauge need replacement.
There is no voltage at the cables going to the gauge; with or without depressing the LEVELS TEST switch. If the tank is empty then the gauge should have zero ohm, and shouldn't see any voltage. The blade connectors are too tight to disconnect to determine if voltage is present. I measure 2 ohm at the connector, which says there's no propane (the gauge may have a 90 to zero ohm range). I've been operating at least 3 days in this mode. Guess it's time to fill the tank and see what happens.
IIRC the typical propane resistance level gauge is around 0-90 ohms or maybe 0-150 ohms. call any propane vendor and they can tell you what the sender resistance value should be.