Re: smoking router
Home Inspectors are not expected to perform technically exhaustive inspections. That's at least in part because we don't just check the electric system, but the HVAC, plumbing, structure, exterior,roof,attic,crawlspace,interior,basement,etc.
The Standards of Practice developed by the National Association of Home Inspectors and the American Society of Home Inspectors state that, at a minimum, we must check one receptacle per room, one window per room, etc. Of course most of us do more than one per room. Often the home is still occupied and heavy furniture may be in front of some receptacles, and some windows may be festooned with Christmas lights, etc. It has to be a somewhat limited inspection to keep within reasonable time and expense bounds. In general we're looking for major defects and hazards.