Originally Posted by VTX Al
If you have it set in "auto" mode, it will default to 110Vac operation and only switch to propane when your trailer is disconnected from shore power, as long as your propane valves are open. If there is no propane source or valves are closed the "check" light will illuminate.
yep, exactly right.
Auto Light ON with shore power; it is running on AC
Auto Light ON - NO shore power; running on DC and propane
Auto Light ON with GAS Button Selected;
running on DC and propane ONLY regardless of AC availability.
Auto Light ON - Check Light ON;
NO AC available AND No Propane Available
Auto light OFF - UNIT OFF.