Refrigerators have become increasingly complex over the years, despite operating on the same, simple principles as ever. The basic functions are accomplished by electric motors, compressors, compressed coolant and tubing, all working together to draw the heat from the interior and its contents. It is not the basic components of the fridge’s system that make home repairs problematic. Electric motors are not that complicated, metal tubing is easy to understand and can be replaced or patched – but the controls have changed on some models from familiar dials and switches to digital panels and touch-screen “interfaces.” Old or new? Pre-digital refrigerators are actually quite elementary devices. Any number of good Internet articles can show you how they work, and a […]