Dishwasher Maintenance Tips
Interior cleaning & deodorizing
You don't need to clean the interior of your dishwasher if you use it regularly. If it goes unused for a week or more and begins to get moldy or smell bad, you can clean it by using a special dishwasher cleaner like Glisten.
Just clean the exterior of your dishwasher with a damp sponge and a little dish detergent.
Dish rack repairs
If the plastic coating wears off of the tines of the dish racks in your dishwasher, they may corrode and rust. The rust can eventually damage your dishwasher and your dishes. This can be prevented with dishwasher rack repair kits.
On many dishwashers, there's a filter near the bottom, or under the lower spray arm that needs to be cleaned regularly. If you have this sort of filter, check your dishwasher manual to find out how to remove and clean it. If it has holes in it, replace it to protect the pump and motor seals from particles that may be in the dishwasher.
Spray arm cleaning
Over time, the small holes in the spray arm(s) of your dishwasher may become clogged with bits of paper, toothpicks, glass, etc. Your dishwasher will do a better job of cleaning your dishes if you take a moment to clean out these small holes, from time to time.