Carrier Furnace

This serial #U3C29115 form a Carrier furnace does not match anything on their age chart. Any ideas?

Thanks

If you have a model # Erol I can try it in Prestons’

Gerry

Someone said to call this number if you get stuck on a carrier age…
905 672-0860

Looks like July 1983.

I believe it’s August 1983.

Does it really matter what month in 1983 it is? I only report the year.