Many washing machine owners encounter various problems when using the appliance. One of the most common faults is that the washer starts to electrocute. The manifestation of such shocks varies, from discharges from the body and drum of the machine to the transmission of static energy across the bathroom floor, and even the water supply tap.
The most common cause of this malfunction is the incorrect grounding of the socket to which the washing machine is connected. This is particularly common in older blocks of flats, but it is also not uncommon in the private sector. Now we will consider in detail the causes of failure, and also tell you how to restore the correct working capacity of household appliances.
How to ground the washing machine
Practically all home appliances of the new generation are issued under European standards and intended for work from three-phase wiring of electricity in which TN-S type of grounding is used. In our country, the transition to new standards is not in a hurry, and even many new buildings are still used three-phase wiring with TN-C type of grounding. In fact, the main problem with the old type of wiring is the lack of full operational safety for new modern household appliances.
Without proper earthing, the washing machine builds up the voltage on individual parts of its construction, most often on the capacitor filter, which eventually results in a weak electrical shock. To avoid this unpleasant effect, the wiring will have to be worked on, and if you are skilled enough, you can do it yourself. If, however, you have no immediate possibility of reconstructing the grounding, try to disconnect the capacitor filter before carrying out any repairs to the main supply.
Some washing machines are fitted with a separate earth terminal, which is located on the back of the washer. Therefore, before looking for a place to drain the excess voltage from your machine, check that the machine supports this option. If the terminal is missing, then use a separate, well-insulated cable to discharge the static current energy to a suitable location.
It is important to realize that water pipes, batteries, and water taps must not be used for earthing. In addition to the danger to the health of others, this method risks rapid deterioration of utilities, leading to new problems and repairs.
It may be worth considering a separate socket outlet with automatic disconnection and three-phase wiring. To do this, you should run a new separate line from the main panel and choose an externally earthed socket outlet. This is the best solution and will keep you completely free of static electricity. Remember that when connecting a three-core cable, you should connect each individual terminal to the socket intended for it. Do not drop the earthing piece onto the operating zero, this type of connection may cause a short circuit. If you are not skilled enough in three-phase wiring, contact an electrician.
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