I'm not sure where you would find a major appliance that didn't have electronics these days. One thing I would suggest is to use a surge suppressor: refrigerator, dish washer, washing machine and dryer controls can be damaged as easily as any other computer equipment. Some say that the boards "should" have surge protection built-in. No doubt, but there are a lot of appliances with burned out cards sitting in the junkyard. The most common surge protection component is a varistor, which has a finite life. So even if the device was initially protected, you can't assume it will have lifetime protection.


If I was building a house today, I'd want to install a whole house series mode surge suppressor.