What test can be done on a propane supplied furnance that has no propane?

Turn on the fan…

Yea, turning the fan on was the only thing I could think of

At the time of the inspection …:smiley:

Why bother, it needs to have fuel, to be turned on to check for function. Write it up :smiley:

Ditto. How can you inspect it if there is no fuel. All you can report on is any visible condition you see. Then write: have gas company fill the tank and have the system tested by a qualified contractor. Sure does limit your liability.