I'm noticing black spots on dishes. I ran a couple of cleaning agents through, with no avail. Even when all dishes are clean going in, I still have some black spots when complete. My theory is that the heating element is breaking down and causing the black spots. Is this a common sign? Should I look elsewhere? Thanks.
Answer Andrew, You need to look elsewhere. Check and make sure the water is hot enough(120 dgrs.F.) on the first fill, at the start of the cycle. check and make sure you're using the proper amount and type of dishwasher detergent and rinse agent. Remove the lower wash arm,filter and filter plate and check for debris in those components. Sudsing and foam, and low water temp, can and will leave deposits on the dishes. wree the element at fault, it would be visibly apparent, there would be guages,dimples, and vacant spots in the element.