Bosch dishwasher error codes without display

Bosch dishwasher error codes without display Despite progress, most Russian families still use Bosch dishwashers without a display. This is not very convenient, if only because the errors of a dishwasher without a display are difficult to understand if you don’t have an official user manual or at least a convenient cheat sheet at hand. We will analyze in detail the main fault codes, how to identify them, and what they are usually associated with.

Cipher display problem

No error codes can be recognized in Bosch technology without a display if the “home assistant” is in operating mode. This is due to the fact that if any problem occurs, the “faucet” indicator on the machine will light up or blink. Therefore, you can find out the specific cause of the malfunction only in a special service mode. What should I do to switch to it?

You must first unplug the dishwasher.
Then turn on the equipment and start the service mode.
Finally, it is necessary to carry out an accurate diagnosis in order to find out the error code and begin to fix the problem.

In words, everything looks simple, but inexperienced users often encounter two problems at once. The first is that not everyone knows how to correctly activate the service mode in Bosch dishwashers. The second is associated with ignorance of the definition of an error among all possible indications on the PMM body. The situation is further aggravated by the fact that on different models of “home assistants” the service mode is launched in different ways, which we will discuss in the following sections.

Service and diagnostic system PMM series SHU

To accurately determine all errors in a dishwasher without a display, you must first go into service mode. First of all, we’ll tell you how to put Bosch SHU43E/53E/66E equipment into a special mode.

Turn the wash program selector knob to six o'clock, that is, lower it vertically down.
Hold down the “Start/Stop” button and turn on the equipment with the power button.
Press the "Start/Stop" button.

The described actions will start the service mode, in which the unit will begin to flash different lights. At this point, the user must not only determine which indicators are lit, but also the order in which they are displayed, which will indicate the error codes. You need to pay attention to the following light bulbs: option for displaying code on Bosch PMM

“Ready” – readiness light, “Ready”;
“Circle” – wash light, “Brush”, “Act”;
“Clean” – cycle end lamp, “Clean”, “End”.

The set of errors may vary depending on the dishwasher model.

Now let’s determine the error codes that the machine is trying to tell us about with an active display during the service mode. If the “Ready” and “Clean” lights start blinking, then at the moment there are no errors, or the machine simply cannot accurately determine the problem. When the “Ready” indicator lights up and “Clean” is actively blinking, the household appliances are faced with problems heating the water.

If “Ready” and “Clean” are flashing while “Circle” is constantly on, then the Bosch dishwasher for some reason cannot draw water for the work cycle. Finally, when “Clean” lights up while “Ready” is constantly blinking, it’s worth examining the temperature sensor for damage.

SHV series dishwashers

Now let's study the process of searching for error codes in the Bosch SHV46C, SL84A, and SHX33A/43E/46A-B home assistants.Entering service mode on this equipment looks easy.

Press the “Regular Wash” with “Delicate/Econo” or “Rinse&Hold” keys.
Start your Bosch dishwasher using the power button.
If the light next to “Regular Wash” is on while “Delicate/Econo” or “Rinse&Hold” are actively flashing, then you have entered service mode.
Now, using the “Regular Wash” button, you can select a test program, after which “Delicate / Econo” or “Rinse&Hold” will begin to light up.
All that remains is to click on “Delicate / Econo” or “Rinse&Hold” to start the diagnostics.

During the test, you should pay attention to the “Power Scrub”, “Regular Wash”, “Delicate / Econo” or “Rinse&Hold” indicators. If “Delicate/Econo” or “Rinse&Hold” lights up, then there is a problem with heating the water. When the “Regular Wash” indicator lights up continuously, the Bosch machine informs the user that the temperature sensor has failed. If the “Regular Wash” indicators come on together with “Delicate / Econo” or “Rinse&Hold”, then the problem must be looked for in the units responsible for collecting liquid. Finally, if the “Power Scrub” and “Regular Wash” lights come on, then most likely the water turbidity sensor has failed.

In older models of Bosch dishwashers, the manufacturer did not provide many error codes, so it is usually not difficult to find the current problem. But if it is not possible to identify a malfunction based on the modest indication of household appliances, then it is worth calling a service center specialist to carry out high-quality diagnostics and immediately correct the breakdown.