The fuse blows when you turn on the washing machine: look for the cause in the wiring
RCDs will trip due to the power system in the following cases:
- When the RCD is of low quality, low capacity, or improperly adjusted. This is the most common variant, possible when turning on any function of the washing machine, even when draining the water. To forget about the problem, it is enough to adjust or replace the circuit breaker itself. (See. Also: How to choose a circuit breaker for your washing machine?)
- Excessive load on the counter. Other powerful electrical appliances, such as a microwave or electric stove, must be disconnected when the machine is switched on.
- The integrity of the electrical wiring or the socket has been disturbed. To check them, you need to connect an electrical appliance of the same capacity. When a RCD breaker repeatedly blows out, it means that the cause is in the wiring.
Adjustment or replacement of the RCD should be carried out by specialists. Otherwise, tampering with a fuse box, meter or plugs can lead to mains overheating and ignition.
There can be several problems that cause a differential circuit breaker, RCD, or circuit breaker to trip. So you need to rule out all the risk factors before you try to start the cycle again.
How to Prevent a Washing Machines Shaking and Spinning Noisily
Improperly rated circuit breaker
Based on the power of modern washing machines from 2 to 3.5 kW, the sufficient rating of the automatic circuit breaker will be 10A. Installing a circuit breaker with a lower rating will cause it to trip permanently when the power-consuming cycles of the washer are turned on. Remember, the circuit breaker or circuit breaker rating must be consistent with the cross section of the cable.
How to choose the correct circuit breaker rating can be found in our article: Circuit Breaker Size Selection according to Load Capacity.
Damage to the power cord or plug
If the cord or plug is damaged, the power circuit is broken and the line is overloaded. A short circuit caused by this problem may cause the automatic system to trip and damage the appliance if it does not have built-in short circuit protection.
The integrity of the cord can be checked by “testing” it with a multimeter. To do this, disconnect the machine from the mains and put the feelers to the extreme points of the cord. before the plug and before entering the washing machine. If the appliance beeps. the cord is fine. You can also check the plug by “probing” the contacts one by one.
A faulty cord can be replaced yourself.
IMPORTANT! Before replacing the power cord, the appliance must be turned off and the water drained from the machine. Do not tilt the appliance.
Short circuit of heating element
Poor water quality and household chemicals negatively affect the heating elements of the washing machine. Scale is formed, the heat transfer is disturbed, the heating element overheats and fails. This overloading causes the automatic system to trip.
Check the heater can be a multimeter, setting the maximum resistance of 200 ohms. Place the probes of the multimeter so that the part under test is on the line section between them. Normal resistance should be in the range of 20 to 50 ohms.
To rule out a short circuit between the heater and the machine’s chassis, measure the outputs and grounding bolts one by one. If the multimeter will ring, it means there is a leakage current, which leads to tripping of the RCD.
Malfunction of the line filter
Problems with the filter can also cause the circuit breaker to trip. Even if there is no melting on the filter pins, it is worthwhile to test its input and output wires with a multimeter. This is done in the same way as a “probe” heater.
The surge protector cannot be repaired. Need to replace the faulty assembly. If a cord is installed, it must be replaced with the filter. A damaged line filter must not be operated any longer.
Circuit shorting in the motor may be caused by the following:
All of these factors can cause a short circuit and trip the breakers. Brushes can be changed. It is important to note the direction in which the brushes are worn before removing them, and install new brushes in the same manner. Check the proper installation of the brushes can be checked by manually turning the motor pulley. If everything is correct, the motor will not make much noise. Otherwise, the brushes will have to be reinstalled. If the problem is not in them, then alternately “probe” the motor contacts with the body of the machine multimeter. If a short circuit is detected, the motor is repaired or replaced with a new one.
When checking the motor, there must be no water in the machine. The machine must stand strictly vertically, do not tilt it.
Contacts and control button malfunction
If the washing machine has been in use for several years, the tripping of the RCD can also be caused by the control button, whose contacts wear out and oxidize over time. You can also check this section of the circuit with a multimeter, by alternately “probing” the contacts and wires that lead from the button to the heater, pump, motor, machine control panel and other components.
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 appliances, you need to call a specialist.
TIP! Specialists recommend to bring any powerful electric appliance to a separate circuit breaker in a switchboard and to have for it a separate socket. In this case the socket for the washing machine must have protection against moisture. Do not plug several appliances into one socket so as not to overload the network. It is ideal when each appliance corresponds to its own socket. Especially in the kitchen, where the maximum number of appliances of different power is concentrated, which often turn on simultaneously, causing overloading of the network and tripping of protection devices.
Wires are frayed
Friction of wires on the panel when the machine vibrates can damage them and short-circuit, which in turn will trigger the RCD, as will be the short circuit on the equipment housing.
You can detect the damage visually. breaking 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. If it is not possible to visualize the wiped area, you can “call” the area at the inlet and outlet.
IMPORTANT! Prevention is always cheaper than elimination of the consequences. At least once every three years it is necessary to carry out preventive tests of the electrical network in the apartment to avoid problems. Wiring and fuse boxes must be selected in full accordance with the capacity of the equipment and without “reserve. Protection must work in a fraction of a second when a short circuit occurs, this will help avoid 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 fire they are negligible. In the power supply circuit should not be bare sections of wiring and “bugs”. Such connections can cause a fire.
When the automation is triggered after turning on one of the washing machine’s cycles, do not touch the appliances and turn the dispenser back on immediately. It is necessary to disconnect the washing machine from the mains and only then restore the electrical supply to the apartment. Do not use the machine until all possible damage has been diagnosed. Ignoring these simple rules can lead to tragic consequences.
Checking electric motors of various kinds with a multimeter
How to choose a circuit breaker by power and load current?
Why the microwave oven works, but does not heat all the reasons
What circuit breaker to put on the input in the apartment and private house?
What to do if there is nothing wrong with the wiring?
Before you look for what has failed in the washing machine, it must be disconnected from the mains. Also, make sure there is no water left in it.
So, the washing machine knocks out the dispenser during washing or when you turn it on, for several reasons:
- Plug is damaged, from which current flows to all wires and components.
- The heating element is short-circuited.
- The surge protector is damaged.
- The motor is broken.
- The interference filter is damaged.
- Control knob does not work.
- The integrity of the wires has been compromised.
Replace the power cord
If for some reason the power wire has been damaged, it must be replaced:
- Unplug the machine.
- Empty the water.
- Remove the panel by first unscrewing the fasteners.
- Remove the surge protector, also secured with a screw.
- Press out the stopper.
- Carefully remove the wire from the machine.
To put a new wire, you need to repeat the same thing, only in reverse order.
Checking the heating element
If everything is normal with the power cable, it is necessary to check the condition of the heating element or the heating resistor. Why? Over time, impurities and scale build up on it. This causes it to overheat and short-circuit. As a consequence. the automatic circuit breaker knocks out immediately after turning on the washing machine.
In most cases the heating element has to be replaced. How to do it correctly:
- Remove the back or front panel (depending on the location of the heating element).
- Turn the nut of the grounding screw a few turns.
- Carefully pick up the heating element and pull it out.
- Repeat the operation in reverse order, but with a new part.
Do not turn the nut too tight. The machine can be turned on only after it is completely assembled.
Changing the mains filter
If the mains filter is defective, it must be replaced. You can check the condition of this element by testing the input and output wires. In some devices, the filter has an electrical cord. It may also need to be replaced.
It is best to check the power supply circuit according to the following algorithm:
- At the very first startup of a new unit, disconnect the automatics. If this is all the problem, it will only be enough to adjust the automatons. Perhaps the wrong type of disconnector or RCD is installed. On how to choose the right automatic machine on the CMA, read here.
- Plugs can be knocked out if a powerful appliance such as a kettle, vacuum cleaner or an oven is operating in the neighborhood.
- The wrong cable was used: only VVG-type cable of size 3 x 2.5 is suitable. The best solution when connecting a washing machine would be to lay a separate network, with the allocation of a separate outlet for it. An extension cord should not be used in this case.
The answer to the question of what the correct plugs for a dispenser should be can be found in
None of the proposed options are not suitable? Then it is necessary to check the integrity of electrical wiring and the outlet itself, in which it will be enough to include a similar power electric appliance.
By the way, it is better to buy the sockets with a special moisture-protected housing.
If all of the above does not give an answer to the question of why the power cuts out when turning on the device, then the problem turns out to be in the washing machine itself. It is necessary to go to plan B. to search for faults in the machine.
The motor or the heating element is to blame
Often the RCD turns off due to a faulty heating element. Washing heaters often fail, because most Russians have to put up with hard water. Heavy impurities and substances present in the liquid deposit on the “coil” a thick layer of scale, which prevents normal heat transfer and leads to a breakdown of the heating element.
Sometimes the heater breaks because of a defective pump. This happens if the drain pump does not turn off, but pumps water out of the drum without stopping. The control board loses contact with the device, obeys the pressostat signals and gives the command to fill the tank. it turns out that cold water is supplied to the machine, and it has not had time to heat up, as evidenced by the temperature sensor. The module detects the absence of heating and makes the heating element work permanently. The heating element cannot function without a “break”. it overheats, exhausts its resource and fails.
Diagnostics and repair of the heating element is as follows
- take a multimeter and set the value to 200;
- remove the back panel of the housing;
- remove the drive belt (if the machine has belt transmission);
- find the heating element located under the drum;
- We hook the probe of multimeter to the contacts of the heating element;
- Evaluate the result (normally the resistance is 15-45 ohms, if more or less. replacement is needed).
A faulty heating element is removed simply: two retaining bolts are unscrewed, the heater is swung out and removed from its seat. The main thing is to buy a replacement for the original spare part, matching the serial number. Otherwise, the part will not “sit down” or will quickly break.
Only original spare parts should be used when repairing Bosch washing machines!
Also Bosch machine knocks out the machine with a faulty motor. However, it is difficult to diagnose and repair the motor at home. It’s much safer, cheaper and more reliable to call a service center for professional assistance.
- Washing machine knocks out the dispenser or fuses
- Why doesn’t the washing machine work
- Ariston washing machine doesn’t turn on. causes
- Indesit washing machine won’t turn on
- LG washing machine knocks out the automatic machine when you turn it on
- The washing machine DAEWOO doesn’t turn on
The causes can be not only outside, but also inside the appliances. Often the answer to the question of why the plugs are knocked out in the apartment, is a banal defect in the socket, plug of the machine or cord. If the socket is not in order, to calculate the fault is simple: try to include it another device. the power should be 2000-2500 watts. If in this case also knocks out, repairs are needed, it is quite possible that the contacts simply loosened. To check the cord specialist to test all three wires that are in the mains cable. Usually the cable is damaged by kinks, kinks and other mechanical damage.
Other violations are usually associated with malfunctions in the equipment itself. And if all external troubles are excluded, in any case it is not necessary to start the machine anew, on the contrary, it is necessary to switch it off and to invite the master for repair.
The washing machine knocks out the dispenser (plugs)
If when you turn on the washing machine or during operation the washing stopped, the indicators went out and the light in the entire apartment is out, probably knocked out the automatic.
If the machine is new and was turned on for the first time, it is most likely a problem with the wiring. The reason may lie in the use of low-quality protection devices, or in the use of RCDs of the wrong capacity. It is dangerous to replace or install a new RCD by yourself. Unqualified intervention in the electrical network in the apartment can cause fire or overheating of electrical wiring.
Automatic breaker can break and in the case in which in addition to the washing machine was connected a lot of other electrical appliances, and the power grid can not withstand the load on it.
A new machine may also break the circuit breaker due to a factory defect. In this case, contact a service center for warranty repair or to replace the faulty machine. If you need the repair of a washing machine in Saratov, then contact our firm. Masters will perform it as quickly and accurately as possible.
Why does the light fails when turning on a new machine?
Your long-awaited washing machine is ready to work, but instead of washing the laundry, it blows out the plugs. It happens with the wrong capacity fuse.
If the current rating (indicated on the case) is less than 16 A, the appliance trips. You’ll have to replace it. The circuit breaker is usually located near the meter. There is also a RCD (ground fault interrupter). RCD shuts off the light if there is a current leak. Have an electrician check these components. If the expert has not found defects in the electrical system, it means that the machine is a factory defect. It is better to return it before the warranty expires.
Washing machine blows plugs
Unexpected failure in the washing machine and turn off the light in the whole apartment is most often associated with knocked out plugs. Washing machine blows plugs due to internal faults or a variety of other causes. Causes independent of the machine can include:
- A newly bought appliance has been started. If there is a problem with knockouts, you should suspect faulty wiring or improperly selected equipment to protect the power grid.
- than one appliance is operating in the apartment at the same time. A kettle on, an electric stove and a washing machine running at the same time can cause plugs to go out because of too much load on the electric grid.
- The cord in the device is damaged, the malfunction is visible to the naked eye. If the plug or cord is “shorted”, it is advisable to refrain from using the equipment until the problem is corrected.
If the plugs blow for other reasons, the problem is in the machine’s malfunction. It is desirable to immediately disconnect the device from the electric network, further use of a faulty unit is dangerous for people living in the apartment and for the electric network of the whole house.