Despite the fact that each dishwasher is different depending on its brand and functioning, most professionals recommend cleaning this appliance at least once a month. But in many cases, you will see some obvious signs indicating that it’s time for cleaning. For example, accumulation on its walls is usually a good indicator. Another example is the sign of corrosion, due to which you will most probably see a yellow or reddish color near the tub. The most vivid case is when the dishes are not washed properly, and you still can see dirt traces even after cleaning. In order not to harm this appliance, it’s crucial to take care of it on time and not wait until it’s wholly damaged because of dirt.