Rust marks may appear as very small brown circles and sometimes accompanied by a small "pit" which may be felt by moving your finger across the surface. In more severe cases the rust marks are often seen as streaks of brown which follow the lines of imperfection in the steel. As shown above, this will also happen where a pattern has been imprinted into the steel.
This issue is not a problem that can be caused by a fault on your dishwasher
Usually the result of:
- Poor quality steel
- Allowing the stainless steel to remain in the hot steamy atmosphere of the dishwasher for too long
- Presence of salt or acid (from food or filling of the salt or rinse aid containers)
- Touching silver cutlery
Cause & Prevention
Rusting is usually seen in areas of imperfection of the steel, for example, along the fine lines of impurities in the steel itself.
Other contributing factors that will contribute to the formation of rust are the presence of steam, salt or acid. Salt and acid may be present when filling the dishwasher salt and rinse aid containers.
Allowing the stainless steel to touch silver items can introduce an electrolytic reaction causing rust to form on stainless steel.
Polishing with a METAL polish/cleaner such as Chromol will improve the appearance of rusted items but may not totally get rid of the rust.
Heavily rusted items will be beyond repair.
Purchase good quality "Dishwasher Safe" stainless steel. The dishwasher interior is made from a high grade of stainless steel.
Opening the door of the dishwasher or removal of the cutlery early in the drying cycle will minimise the risk of rusting.
Rinse any excess acid or salt from the tableware before you place them in the dishwasher.
Remove any spillage from filling the dishwasher salt or rinse aid containers by running a a "rinse and hold" cycle with an empty machine. Try to fill these when the machine is empty of any items.
DO NOT mix stainless steel and silver.
How You Can Get Help With Dishwasher Problems
To offer support in helping people to determine the cause of dishwasher problems please use the dishwasher support forum.
It’s fast, free, easy and normally someone will pick up on the post that can assist you often with a few experts chipping in if needed. Just register if you don’t have an account, we don’t mail you, send you spam or any of that stuff.
Post up your question and give images if you possibly can and the guys in the forums will do the rest for you and try to identify the problem you have.
Cost you nothing, might save you some embarrassment or worse, a charge for a service visit that wasn’t needed.
Photographs Of Damage
If you can post photographs of the damage or problem you are having this can be really helpful in allowing the dishwasher technicians to see what the problem is.
The guys have the knowledge to assist with most problems but the more information you give them, the better they can help you.