My Frigidaire is from 1959 also (the D-13–59 model, I think yours is the FI-122-59, the next better up model), and has a similar dial. The letters come first, and are the higher temp settings (i.e. runs less, warmer in the fridge) and then the numbers (3 is the coldest setting). If you have it set on 3, it will run quite a bit.
I keep my control between 1 and 2, which keeps the fridge compartment at 34 degrees and the freezer compartment near zero. It doesn’t run nearly as often as our 1991 Whirlpool fridge in the utility room. When defrosting, I unplug the whole fridge rather than rotating the control to defrost, as the control is original.
The service manual suggests starting at A, but for mine, I used two thermometers with the fridge full, and adjusted as necessary. 3 will begin to freeze a gallon of milk in the fridge compartment.
Do you have stuff in the fridge? If not, this will extend how often it runs.
I had to repaint mine a couple years ago, and wound up removing the paint from the “lace trim” panels and polishing them.
Hope this helps. They’re good refrigerators. [this post was last edited: 11/6/2024-22:31]
