Electrolux = Frigidaire
My granddaughter rented a condo a year ago with a newly installed Frigidaire refrigerator that literally sounded like a midget with an icepick was in the freezer compartment trying to chop their way out. She literally thought someone had been breaking into her kitchen.
Three service companies came out, with all claiming to have remedied the noise. The forth and last service technician said that Frigidaire hasn't been a GM division in 40-years, and is now owned by Electrolux headquartered in Sweden.
Come to find out, the defrost cycle uses a Cal-rod heating element to reduce defrost time, that causes the paper-thin aluminum evaporator fins to click and pop when expanded by the element's heat. Imagine someone in your kitchen at three in the morning repeatedly folding a disposable pie tin back and forth until it finally tears in half.
Long story short, Electrolux bought it back ! ! !