I got this print dryer in 1974. I stopped using it for print drying in the 1980s when I went to drying screens and over-night drying.
In the 1980s I used a microwave oven to dry test prints. That microwave broke around 2002 so I found the old print dryer from 1974 and put it back in to service.
Then, just the other day it stopped producing heat
I really could not finish the printing session. Since the 1980s I evaluate the test prints when they are dry only. I have no interest in trying to guess about wet test prints.
This is how I rectified the situation....