The invention of the dishwasher is told with an interesting story. Josephine Cochran, a wealthy woman with a large social circle, noticed after her frequent large parties that her servants broke many dishes and glasses while washing them. Out of frustration, she invented the dishwasher, for which she received a patent in 1885.

Although it is claimed that the dishwasher, much like the washing machine, has been developed with hundreds of additional patents since its invention, it hasn’t actually shown major fundamental leaps. Beside issues like the significant loss of transparency in glasses and detergent residues, we also encounter increasing malfunctions as technology becomes more complex.

Nevertheless, for the past 20 years, it is hard to say that anyone washes dishes by hand anymore. Although a dishwasher failure might not affect daily life as drastically as a boiler, refrigerator, or washing machine, let’s examine the causes of malfunctions, how to prevent them, and what to check before calling technical service under a few headings:

• The dishwasher does not take in water.

In this case, first make sure that power is reaching the machine. You can verify this by checking that the plug is in the socket and inspecting the fuses. If power is reaching your system, ensure that the mains water is running, the valve leading to the machine is open, and the hose is not blocked or kinked. If all checks are completed and the problem persists, the electronic control board of the machine may be burnt.

• The machine does not wash the dishes cleanly or leaves stains.

While the salt or rinse aid levels might be low, you can perform visual checks such as the possibility of faulty spray arms or the dishes not being placed vertically.

• Dishes come out without drying.

The heating element (resistance) or the thermostat may be faulty.

• The machine operates noisily.

The motor bearings or bushings may be faulty, or the spray arms might be hitting the dishes.

• The machine does not drain the water.

There is a high probability that the drain hose is not connected properly or is clogged. The drain pump motor may also be malfunctioning.

As Trimbox, with our new generation surge arresters and surge suppressors, we protect your dishwashers against overvoltages—just like your other white goods and your boiler—if you install just one unit in your home.

Simple precautions sometimes save lives. The best investment we can make for our family, our business, and our environment is protective measures. With Trimbox and GNDSeries, you can be protected from electricity-related damages and electrical contact fires caused by them.

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