My Commercial Dishwasher Doesn’t Work: 5 Common Malfunctions

An average commercial dishwasher washes 30–35 racks or 750 dishes per hour. In case of any malfunctions, it is impossible for people to cover these amounts manually, which may cause financial losses to your business. In this article, Appliance Care listed the most common dishwasher breakdowns and how you can fix them.

5 most common commercial dishwasher malfunctions

Leakage. Leakage usually occurs because of damaged or worn-out hoses, pipe settings or seals. Another reason is that the rinse and boiler tanks may have a limescale buildup, which creates rust and leads to leakage and additional problems.
Solution: Firstly, find the leaking area. You may try to fix the problem on your own by replacing the hoses, pipe settings or seals. In most cases, it would be better to delegate this work to technicians, who can make a full diagnosis and repair the system efficiently. To prevent leakages and buildups, use a water softener or water descaler and wash the unit daily.
Starting Issues. These may occur due to problems with the door or selector switches, motor or motor relay, control board, and timer. They define when your dishwasher should start, how much energy should be delivered, etc. If any of them don’t work, the unit won’t start.
Solution: These parts need to be examined by professional technicians. Therefore, schedule a visit from any of the Appliance Care experts here.
Washing Problems. They can be caused by poor quality detergent, low water heating or even a low amount of water filling the dishwasher. That’s why your dishes may remain unwashed with a bad smell.
Solution: You can change the detergent, and check the inlet valve or floating wave. Sometimes these parts require tune-up or replacement.
Draining Issues. The drain may be clogged with soap buildup, leftover dryer lint, grease, oils, and other materials on clothing. Over time, it can restrict or fully stop the water flow.
Solution: Remove the drain pump cap filter, clean or replace it. You can also check the drain pump impeller.
Heating Issues. The minimum temperature should be at least 40 °C to wash your dishes from grease and deposits. If it doesn’t heat well enough, the problem could be with the heating elements inside the unit.
Solution: In most cases, these parts of commercial dishwashers require replacement.

You might be running into other issues that are not described in the list above. Our team highly recommends you to hire professional experts, who will provide full diagnostic and repair, following all food safety regulations. Follow the link below to contact the Appliance Care at any time of the day and night.

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