Most people assume a dishwasher will work forever, but the reality is a bit different. On average, a good quality dishwasher lasts 9‑12 years. Cheap models may drop out after 5‑7 years, while premium brands can hit 15 years if you treat them right.
First, build quality matters. Stainless‑steel tubs, reliable pumps, and sturdy racks are built to handle heat and water pressure better than thin plastic parts. Second, usage frequency plays a role – running it twice a day will wear components faster than a weekly wash.
Third, water quality is a hidden killer. Hard water leaves mineral deposits on heating elements and spray arms, reducing efficiency and causing premature wear. Installing a water softener or using a cleaning agent once a month can keep those deposits at bay.
Finally, installation errors can shorten a dishwasher’s life. An uneven floor, improper hose routing, or a loose connection can strain the motor and cause leaks. If you’re unsure, let a professional handle the setup.
Cleaning the filter is the easiest way to prevent clogs. Pull it out every few weeks, rinse under running water, and brush away food particles. A clean filter means the pump works less hard and lasts longer.
Next, run a cleaning cycle with a dishwasher cleaner or a cup of white vinegar on the top rack. This dissolves limescale and grease that build up on spray arms and the interior walls.
Don’t forget to check the spray arms for blocked holes. Use a toothpick or a soft brush to clear any debris. When water can’t spray properly, drying cycles become uneven, and the machine strains itself.
Leave the door ajar for a few hours after each wash. This lets moisture escape, preventing mold and rust on seals – both of which can cause leaks and foul odors.
Finally, be mindful of loading. Overcrowding blocks water flow, while placing heavy pots on the bottom rack can bend the rack or damage the tub. Follow the manufacturer’s loading guide for best results.
When you notice signs like longer cycles, strange noises, or dishes not coming out clean, it’s time to investigate. Often, a simple part swap – such as a new pump seal or spray arm – can restore performance without a full replacement.
If repairs start adding up to more than half the cost of a new unit, consider buying a dishwasher that offers a longer warranty or a reputable brand known for durability. Many UK retailers provide a 2‑year warranty, but extended plans can be a smart move for appliances expected to last a decade.
In short, a dishwasher’s lifespan isn’t set in stone. By choosing a solid model, keeping the water clean, and performing basic upkeep, you can push that 9‑12‑year average up to 15 years or more. Save money, cut waste, and keep your dishes sparkling – all with a little regular attention.
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