Small, old fashioned basement refrigerator that requires periodic
defrosting. The fridge has worked great for 25 yrs. but almost from
the beginning, the light inside flickers and then goes out, or else
doesn't even flicker, just stays dark inside when the door is opened.

The other day an electrician fixed a vestibule light that flickered.
He made his fix in the wall switch, and said that it could have been
dangerous if left uncorrected. I forgot to mention to him the
refrigerator light problem.

Is this the same type of electrical situation? The fridge kicks on
immediately when plugged in after defrosting and works great; it's
just the light that is the problem. Thank you.