Plunger
A plunger can actually be very effective when it comes to taking out small dents and dings in any type of aluminum. Use a plunger that is small and slightly damp. Simply place the plunger over the dent and press down; the suction should take hold and pull out the dent as you pull. This will work on smaller dents, but make sure that the plunger itself is at least as big as the dent.
Heat and Cold
You can also try to use a blow dryer and a lot of ice to get the dent out. First, use the blow dryer on the dent and get it as hot as possible. After you have done this, apply ice to the dent. If you do not wish to use ice, you can also used compressed air. Be sure that you hold the can upside down and make sure that it is cold enough to freeze. This may take a round or two of heat and cold to get the dent out. This could cause the dent to pop back out. This does not work in every case, but does not do any harm to the appliance if it does not work.
Touch-Up Paint
You may not be able to get around scratching some of the paint off of your appliance. The good part about this is that it is very easy to fix. You will simply need to get some touch-up paint at your local hardware or auto parts store. Simply apply the paint and allow for it to dry. Be sure that it is the same color as your appliance or you will be able to see the scratches just as well as if you had never used the paint at all.
Bang It Out
If you are able to get to the inside of the area where the dent is, then you can use a flat-ended hammer to bang it out. This is not always an easy task with washers and dryers, but if you are able to get to the other side of the dent, then this is a method that can work very well. Be sure that you start at the more shallow ends of the dent and work your way towards the deeper parts.
