Depends on what it smelled like. If it filled the motorhome with smoke, I'd be concerned. If it was merely a faint smell like a little oil or coating burning off, I wouldn't worry too much and run it a bit with the windows open. Just keep an eye on it if you do it yourself. It is always possible that someone left flammable materials in the assembly against something hot, and they are melting or catching fire.
2006 Jayco Seneca 34SS
2006 Jeep Wrangler Unlimited Rubicon Toad