Contents
The operation of the Bosch dishwasher may be accompanied by malfunctions. The machine’s self-diagnosis system displays an error code on the display – so the user can find the cause of the breakdown.
What are the most common breakdowns in a Bosch dishwasher? Is it possible to do the repair yourself? You will find answers to questions in the article.
Bosch PMM error codes are collected and described in detail in a separate article.
Common causes of Bosch dishwasher breakdowns
What factors lead to the breakdown of the dishwasher:
- Incorrect use and connection. Before starting operation, the user does not study the instructions.
- Poor quality water with impurities.
- Power surges in the network.
- Installation in a damp room, which affects the electronics and the control module.
There are basic types of faults, while you need to pay attention to the behavior of the machine if it does not work correctly.
- If the machine does not draw or drain water, the cause may be a blockage in the drain or inlet hose. The filter or drain pump could also be clogged. The reason for the lack of water could be a breakdown of the filling valve.
- If the Bosch dishwasher is frozen and does not start, or there are problems with washing dishes, there may be several reasons. If the nozzles or rocker arms are dirty, water does not enter the machine well. Therefore, washing may not be effective. If the PMM door is not properly closed, the water intake will not start and the system will freeze. The most difficult failure is a module malfunction.
How to check the pump and other parts of the dishwasher, read below.
Do-it-yourself dishwasher repair
As you understand, common causes of breakdowns are blockages or incorrect connections. Consider how to repair it yourself, without the help of a master.
Blockage removal
If water does not enter the Bosch dishwasher, check the following details:
- turn off the water supply;
- inspect the inlet hose, it may be pinched;
- unscrew the inlet hose and clean the filter mesh.
Additionally, the filling valve is checked – its coils are called by a multimeter. In case of malfunction, the part is replaced.
If the dishes are poorly washed, the point is clogged nozzles, which are sprayed with water from above. You can clean small holes with a toothpick.
Due to clogging, water may not be washed off after washing. The machine needs proper maintenance: before loading, the dishes must be cleaned of food residues, otherwise the filter will become clogged. How to fix the situation:
- There is a filter at the bottom of the dish chamber. You need to unscrew it and clean it from dirt.
- Behind the filter is a circulation pump. In the event of a blockage or breakage, water is not pumped out of the machine. A new pump needs to be installed.
- The drain hose is also inspected and cleaned.
Dealt with blockages. Now we will tell you how to fix the PMM if she does not want to wash the dishes.
Dishwasher freezes
You have loaded dirty dishes, but the machine does not start drawing water, or it freezes and does not respond to pressing at all. How to repair equipment:
- Check the door lock. It is possible that the hole that the latch of the lock enters is clogged. Try to clean it up.
- With frequent use, the “Start” button could be pressed through. Try to disassemble the control panel and return the button to its place.
- The most serious malfunction is the control module. The master will be able to carry out its diagnostics and repair.
When the dishwasher closes normally, but the wash cycle does not start, the level sensor could break. It cannot be repaired, it needs a complete replacement.
Solving heating problems
Water flows into the machine normally, but does not heat up? The heating element is defective. For a guide to replacing the heating element, see the video:
Noise at work
The cause of extraneous noise during operation may be bearing wear. This is caused by water that seeps through a damaged stuffing box. The grease is washed out and the bearings begin to hum. Only replacement of bearings and oil seal will help.
In the article, we examined the main causes of the breakdown of the Bosch dishwasher. The self-diagnosis system of the machine will help in determining the problem. If you are not sure that you can fix the equipment, it is better to contact a specialist.