Kawasaki bayou 220 running roughOr I guess it might be a small regular fridge.. Whatever it is, it doesn't have defrost built in. If I should do it periodically how often should I schedule it? After 11-12 years my basic GE Top loader washer died. The motor needs a start capacitor most likely, but the transmission/tub bearing makes noise...Kuta exponential functionsEvery 8-10 hours or so, your refrigerator goes into defrost mode. This is when the defrost timer or ADC board shuts down the cooling components and turns on a heater in the freezer section. If the timer has advanced into defrost, it's possible that a bad timer will not advance out of defrost.