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Understanding the Effects of Hard Water on Your Dishwasher and Fixes for Common Problems

repairs for dishwasher


Having hard water can cause a range of problems with your dishwasher, including residue on dishes, soap scum buildup, and even top-rack sprinkler malfunctions. Luckily, there are several solutions available to keep your dishwasher running smoothly and prevent damage from hard water deposits.

hard water dishwasher problems

Hard water is defined as water with a higher mineral content than standard tap water. The most common minerals in hard water are calcium and magnesium, which can affect the performance of your dishwasher. Calcium and magnesium cause buildup and residue on dishes, soap scum can accumulate on the surfaces of your dishwasher, and the top-rack sprinklers may no longer function properly. Because of this, it’s important to take preventative measures when using hard water in your dishwasher.

he most common problems caused by hard water include mineral buildup and residue on dishes, cloudy glassware, soap scum on the interior of the dishwasher, and clogged top-rack sprinklers. These issues can cause a decrease in water pressure and a drop in cleaning performance over time. Additionally, it’s more difficult to achieve effective washes with limescale deposits inside your dishwasher.

Hard water is likely if you live in an area with mineral-rich soils. To quickly identify hard-water issues, have a water test done of your source water supply or test the dishwasher’s interior for limescale buildup. If there is limescale present, it may be beneficial to install a whole house water softening unit to reduce these effets before they cause ongoing damage to your kitchen appliances and surfaces.

There are a few simple fixes to common problems related to hard water consumption. You can run a rinse cycle with plain white vinegar to help remove limescale and other contaminants, or you may need to make changes such as altering the temperature of the water entering your dishwasher. Additionally, use detergents designed especially for hard-water usage in your machine and always check your appliance’s filter on a regular basis.