It takes well under 40 minutes and you probably have the screwdrivers and paper clip that make this fix happen. You can always call. We've since improved the unit. The newer fans come apart easier and work better. We'll send you a newer fan unit when you call in most cases. Small hands help the repair go quicker. All you do is simply add 4 flat washers to the fan and put it back together and you have foam again quickly. Now, drop the machine and it still works.