If a power outage occurs when starting any of the cycles of the washing machine, do not ignore the problem. Simply returning the machine to its original position is not enough. It is necessary to check the condition of the wiring and the household appliances themselves.
Reasons for turning off the RCD, difavtomat and circuit breaker
Problems in which it works differential machine, RCD or circuit breaker there may be several. Therefore, all risk factors must be eliminated before attempting to start the wash cycle again.
Incorrect selection of the circuit breaker rating
Based on the power of modern washing machines from 2 to 3.5 kW, a sufficient rating of the machine will be 10A. Installing an undersized circuit breaker will cause the circuit breaker to operate continuously when the washing machine is running energy intensive cycles. It must be remembered that the rating of the circuit breaker or difavtomat should be related to the cable cross-section.
How to choose the right circuit breaker rating can be found in our article: The choice of the nominal value of the machine according to the load power.
Damaged power cord or plug
Damage to the cord or plug will break the power circuit and overload the line. A short circuit caused by this problem can lead to automation and damage to equipment if the latter does not have built-in protection against short circuits.
The integrity of the cord can be checked by "ringing" it with a multimeter. To do this, the machine must be disconnected from the mains and attach the probes to the extreme points of the cord - in front of the plug and before entering into the washing machine. If the device beeps, the cord is OK. You can also check the plug, alternately "ringing" the contacts.
You can replace a defective cord yourself.
IMPORTANT! Before replacing the power cord, the equipment must be turned off, the water from the machine must be drained. You cannot tilt the equipment.
Short circuit of the heating element
Poor water quality and household chemicals adversely affect the heating elements of the washing machine. Scale forms, heat transfer is disturbed, the heating element overheats and fails. This overload leads to the operation of automation.
You can check the heater with a multimeter by setting the maximum resistance value to 200 ohms. Position the multimeter probes so that the part to be tested is on the line section between them. Normally, the resistance should have a value in the range from 20 to 50 ohms.
To exclude the short circuit of the heating element on the body of the machine, you need to alternately measure the outputs and grounding bolts. If a multimeter ringing, it means that there is a current leakage, which leads to operation RCD.
Mains filter failure
Problems with the filter can also cause the difavtomat to turn off. Even if there is no melting on the filter contacts, it is worth ringing the input and output wires with a multimeter. This is done in the same way as "ringing" the heating element.
The mains filter cannot be repaired. You need to replace a defective unit. If the design of the filter provides for a cord, then it is changed along with the filter. Further operation of a damaged line filter is unacceptable.
Engine malfunction
A short circuit in the engine can be caused by the following reasons:
- Water ingress from a damaged tank;
- Hose leak resulting in water flooding the engine;
- Wear of brushes.
All these factors can lead to a short circuit and the operation of machines. The brushes can be changed. It is important, before removing the brushes, to remember in which direction they were ground and install new ones in the same way. You can check the correct installation of the brushes by manually scrolling the motor pulley. If everything is set correctly, then the engine will not make much noise. Otherwise, the brushes will need to be reinstalled. If the problem is not in them, then the contacts of the engine with the body of the machine alternately “ring out” multimeter. If a short circuit is detected, the engine is repaired or replaced with a new one.
When checking the engine, there should be no water in the equipment. The machine must stand strictly vertically, it cannot be tilted.
Malfunction of contacts and control buttons
If the washing machine has been in operation for several years, then the cause of the operation RCD a control button can also become, the contacts of which wear out and oxidize over time. You can also check this section of the circuit with a multimeter, alternately “ringing” the contacts and wires that lead from the button to the heater, pump, engine, machine control panel and other nodes.
To replace the button, you must remove the entire control panel of the washing machine, then replace the faulty button with a new one and install the panel back. If you do not have the skills to work with the repair of equipment, then you need to call a specialist.
REFERENCE! Experts recommend that any powerful electrical appliance be output to a separate machine in the shield and have its own outlet for it. At the same time, for a washing machine, the socket must be protected from moisture. Do not connect several devices to one outlet, so as not to overload the network. Ideally, when each device has its own outlet. This is especially true for the kitchen, where the maximum number of electrical appliances of various capacities are concentrated, which are often switched on simultaneously, causing network overload and triggering of protective devices.
Frayed electrical wires
The friction of the wires on the panel during the vibration of the machine can lead to damage and a short circuit, which in turn will lead to the operation of the RCD, as there will be a short circuit on the body of the equipment.
Damage is detected visually - violation and melting of the insulation. It is necessary to solder the damaged area and re-insulate the wire, or replace it completely with a similar one. If it is not possible to visualize the wiped place, then you can “ring out” the area at the entrance and exit.
IMPORTANT! Prevention is always cheaper than remediation. At least once every three years, it is necessary to carry out preventive tests of the electrical networks in the apartment in order to avoid problems. Wiring and machines must be selected in full accordance with the power of the equipment and without a "reserve". Protection should work in a fraction of a second when a short circuit occurs, this will help to avoid a fire and more serious damage to equipment. The services of a specialized electrical laboratory for preventive testing may seem expensive, but in comparison with the consequences of a fire, they are negligible. The power circuit should not have bare sections of wiring and "bugs". Such connections may cause fire.
When the automation is triggered after turning on one of the cycles of the washing machine, do not touch household appliances and turn the machine back on immediately. It is necessary to disconnect the washing machine from the mains and only then restore the power supply to the apartment. Do not use the machine until all possible damage has been diagnosed. Neglect of these simple rules can lead to tragic consequences.
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