07/20/2023
Today we are talking about dishwashers. Many times I have people talk to me about poor performance from their dishwasher. Some of the complaints I get most often is dishes aren't getting dry, there is a white film on my dishes and it won't come off, and of course the dishes are not getting clean.
There are many reasons why dishes aren't getting dry, other than the heater isn't coming on. First it is important to understand that because of federal mandates to have more energy efficient appliances the heater has been designed to run cooler and a shorter time from that ones that were built 20 plus years ago. to compensate for this you must use a rinse agent in the dishwasher to shed as much water off of the dishes as possible so that the shorter and cooler, not to be confused with cold, dry cycle can actually dry the dishes.
A white film on dishes is usually an indicator that you are rinsing your dishes and using your dishwasher to sanitize your dishes. Although this may sound like a good idea it is not recommended. Too much detergent for the amount of food you have on the dishes will create several bad scenarios. One is that the detergent doesn't break down during the wash cycle and therefore doesn't get flushed out during the rinse cycle and you get detergent redepositing on your dishes. The detergent build up on your dishes can create an excessive amount of suds and that can cause your dishwasher to leak. My recommendation is to remove anything that won't dissolve in water from the dishes before loading. Anything that will dissolve in water leave on the dishes so that the detergent will have something to react with. This will break down the detergent, hold the food residue in suspense long enough to get flushed out of the dishwasher.
Having the proper amount of food residue on the dishes helps the detergent to perform its job. Having too much food that won't dissolve left on the dishes can plug the filter screens and create an environment where dishes won't get clean. At least once a month clean your dishwashers filter screens. There is usually two, a round one that sits inside the sump and a flat one that sits on top of the sump.