Bosch dishwasher won't turn on

Any equipment can fail at one unpleasant moment, even if it was working properly only yesterday. If after pressing the power button your dishwasher does not turn on, then this is not yet a reason to panic and call a service center specialist. It is quite possible that you can deal with the problem yourself. We'll tell you exactly how.

Why is the dishwasher silent?

If your Bosch home assistant suddenly stops working for no apparent reason, but does not notify the user about a problem with sounds or displays, then first of all you should check the presence of electricity in the house. This is the most banal assumption, but when the PMM does not start, this is the first thing you need to know before starting repairs at home.

If you don’t have the time or experience, you can always call a repairman to check the equipment for damage and restore it yourself.

It is the lack of light in the house that often becomes the reason why the dishwasher does not turn on, and housewives begin to worry about their favorite household appliances. If there is light in the house, then you need to carefully check several more common versions, according to which the machine may not respond to button presses and may not even show any indication.

• Damage to the power cord.
• Failure of the outlet to which the dishwasher is connected.
• The machine's power button is broken.
• The power filter is damaged.
• The PMM control unit is faulty.

This is only a small part of the reasons why Bosch equipment has stopped functioning normally, but in any situation it is worth starting with checking these points. You can also test the contacts and wires using a simple multimeter, if you have one in your home equipment. The tester will help you find the problem if the wiring is burned out or torn. In addition, you need to use a multimeter to examine the heating element, which could have burned out due to active use or due to sudden voltage surges in the network. If this is the case, then you will have to buy a new water heating element.

Cable problem

Let's start with the most basic problem, which is easy to fix with your own hands. If the power cord is damaged, your Bosch home appliance will not turn on until the problem with the cable is resolved. It is common for users to place the dishwasher incorrectly in the house by accidentally installing it on the power cord.

This is almost impossible if a specialist helps identify the “home assistant”. Therefore, if you undertake installation yourself, then make sure that the device stands exactly at the building level and does not touch hoses or cables. Otherwise, you may encounter an unpleasant situation in which burnt marks from a broken power cord will remain on the floor. That is why it is so important to carefully install the equipment, monitoring every detail of the installation.

If the Bosch machine is already installed and does not start, then you need to check the wire with a multimeter. Switch it to ohmmeter mode and begin testing by connecting the tester probes to the power cord plug. If the device shows that the cable is really damaged, then you should not try to solder it, twist it or restore it in any other way.For safety, simply completely replace the network cable - this will help you avoid fire and other emergencies.

If the multimeter demonstrates that the cable is working, then you need to proceed to further actions.

Checking the capacitor

No matter how modern household appliances are, they remain sensitive to sudden changes in voltage in the electrical network. Therefore, problems with voltage, spontaneous blackouts, as well as non-compliance with operating rules can cause failure of the mains capacitor of a Bosch dishwasher. It can be checked only after partial disassembly of household appliances and a thorough inspection.

• Remove the front panel of the dishwasher, which is located directly under the PMM door.
• Remove the side fasteners that hold the pan in place.

At this stage, be sure to place towels or rags under the machine so that the waste liquid remaining inside the device does not flood your floors.

• Open the washing chamber door and remove the waste filter and impeller.
• Slam the door, turn the “home assistant” over.
• Carefully remove the pan, first disconnecting the hoses and wires.
• Find the circulation pump - it contains the capacitor that we need so much.
• Take a multimeter previously set to ohmmeter mode to study the resistance of the network capacitor.

Also during the inspection, it is necessary to examine the wiring and contacts for damage. If the cause of the malfunction is the capacitor, then take the faulty part as a sample so that you can buy a suitable replacement unit in the store. If the element is working properly, then proceed to the next paragraph of the article.

Control board

The most likely reason at this stage is the failure of the control board of the Bosch dishwasher. The saddest thing is that this element is almost impossible to restore on your own without extensive experience or special knowledge. It is noteworthy that the service center technicians themselves advise not to touch the part, since the risk of damaging it even more is too great.

It is difficult for even certified masters to cope with, considering how complex this peculiar “brain” of the PMM is. Replacing it is also not always necessary, so before purchasing a new unit you should always consult a specialist. If you suspect that the Bosch machine does not start precisely because of the control module, you should contact the service center so that the pros can figure out the problem.

If it turns out that the cause of the problem is really in the board, then it may turn out that it will be easier to buy a new “home assistant”, given the high cost of repairing and replacing the control module. The difference in cost will be minimal, but you will get a brand new machine for your kitchen.

Approach repairs wisely, don't jump to conclusions, and always check for the most common appliance problems first. This will help you make the right decision and save your family budget.

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