Every year, manufacturers are increasingly improving washing machines - there is a struggle for the quality of parts and assembly. But, despite the high-quality components, the washers break down - often due to sudden changes in voltage in the network.
Power surges could instantly disable the control board and all electronic components if an interference filter were not provided for their protection.
Why washing machine interference filter
The noise suppression or surge protector is designed to protect the electronic “filling” of the washer. The wider the functional and the greater the choice of programs, the more sensitive the control, the more dangerous the voltage drops for them. It is highly likely that they will lead to the burning of one of the elements.
Initially affected:
- main board;
- electric motor;
- heating element (TEN);
- wiring.
If you want to avoid costly repairs, do not neglect the timely replacement of the surge filter for the washing machine.
In addition, the surge protector protects other equipment from high-frequency currents that may come during the operation of the SMA.
Principle of operation
Standardly passes through itself oscillations with a frequency of 50 GHz. Anything lower or higher than this value - the part blocks. However, protection surges can not withstand too high voltage surges.
In this case, you need to replace the interference filter.
For more reliable protection, it is recommended to use a voltage stabilizer. It will help protect the details of the washing machine from breakage.
Varieties of Capacitors
The filter can be not only internal, but also external. The internal is immediately installed in the manufacture of the machine. External is an extension cord for 3-8 outlets. It is equipped with buttons that turn off the supply of electricity to the equipment during a voltage drop.
Replacement sequence
How to understand that a filter is broken? Outwardly, this can be manifested by the fact that the washing machine does not turn on, or when it is turned on, the switch in the switchboard is knocked out.
This is a dangerous malfunction, which leads to a short circuit and fire. Therefore, first of all, unplug the device.
How to check a noise suppression capacitor
For this, a multimeter tester is used.
To get to the capacitor, do the following:
- After disconnecting the washer from the mains, unscrew the two screws on the back, remove the top cover.
- At the top of the side wall is a surge protector.
Inspect the part: during combustion, usually burnt or burnt parts of the wiring are visible. Then it is already clear that it needs to be replaced.
What to do if outwardly no signs are found:
- Set the multimeter to the resistance measurement position.
- Connect its probes to the contacts of the capacitor.
- Perform an entry and exit check.
The capacitor is defective if there is no output voltage during the measurement.
How to change the surge protector in an automatic washing machine? Proceed as follows:
- On the rear panel of the AGR, unscrew the two bolts securing the filter.
- If you are not sure that you remember the location of the capacitor wires correctly, photograph them.
- You can do it even easier: take a new filter in your hand and alternately switch the connectors from the old to the new part.
If you do not know how to choose a new part, remove the broken capacitor and go with it to the store. The seller will give you a suitable item for your car.
This is a simple repair, which even a beginner can handle. By organizing the right protection for your equipment, you save on its further repair.
To understand how to replace the capacitor yourself, a video on the topic will help: