Things like this are difficult to find. I think many people assume that work
was done to code, permits were applied for and the work was inspected.

There are "clues" that this type of thing might exist in a house though.

When people do this type of thing, you can bet they have done other things
around the house which are not up to code. So when some things are found in
a house which are not up to code, a careful examination of everything should
be in order.

For example I saw a house which had an electrical junction box which had a
cut piece of cardboard covering it rather than a metal cover plate. How
cheap can you get? What does a metal cover plate cost - 50 cents? Anyway
this was a "clue". Elsewhere in the house I found all sorts of other code
violations like lamp cord run in the walls (homeowner added extra outlets),
etc.

Anyway some things found around a house which are not up to code should set
off an alarm bell and you should then *very* closely check everything.

Same thing with used cars/trucks. If you see modifications have been made
with are not factory spec. (duct tape type of repairs), then might want to
pass on buying that vehicle because who knows what else they did...


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3 prong outlets where the owner tied the neutral to the ground pin. a
friend i spewnt the day with reported a family member just sold a home
like that

I donmt believe the common testers would catch such a miss wiring.

worse its plain unsafe....

incidently the home inspector who did this home didnt catch it