One of the problems that I run into as a serviceman are appliances that have been ‘built-in.’ This is especially true of dishwashers that were installed before ceramic or hardwood floor was laid down. If the floor was not installed under the dishwasher, then it is virtually impossible to remove the dishwasher without either damaging the floor, damaging the dishwasher or lifting the countertop.
Other examples are cooktops that are siliconed or glued down. Hood fans or OTR microwaves that have been siliconed or grouted into place. Stackers installed into closets before the doors and door frames were installed. etc.
Pictured below is a regular Whrilpool washer that has been built-in with walls and a hard plumbed washtub. This unit appears to have a transmission problem, but until the customer has someone remove the washer from its current position, I cannot do anything further. Think about this when renovating or designing your home.