Error code E90 on a Bosch dryer

Even the most expensive household appliances are not protected from one-time failures and other minor problems that can be easily dealt with at home. If you have an E90 error on your Bosch dryer, then you definitely don’t have to worry about it. This problem is very common and well studied. We will analyze in detail what to do in a situation where the self-diagnosis system has detected that something prevented the “home assistant” from completing the work cycle.

What kind of breakdown are we talking about?

The error code we are interested in, E90, usually appears due to the fact that the control module has detected a failure of a certain electronic element. In this case, the cause of the problem may be hidden in one or several key nodes at once. So, what do you need to check yourself?

• Power supply. First of all, make sure that the problem cannot be resolved by simply connecting the dryer to the power supply. Perhaps someone accidentally pulled the plug out of the socket, or the lights in the house were simply turned off suddenly. Additionally worth checking power cable for integrity.
• Device overheating. The next step is to examine the dryer for possible overheating. This can happen due to the drum being overloaded, as well as clogged filters or vents that need to be cleaned from time to time. If the problem is really high temperature, then you just need to wait until the household appliance has completely cooled down, and then start it again.
• Heating element relay contacts.
• Power capacitor.
• Pressure meter.
• Main control module.

If you suspect that a faulty element of the machine needs to be repaired, it is better to call a service center specialist so as not to accidentally damage the device even more.

In this case, most often the E90 error code appears not due to damage to parts, but due to a one-time system failure, to combat which no action needs to be taken. Experts agree that this happens due to the imperfection of the Bosch self-diagnosis system, so you won’t be able to fix the problem yourself.

Understanding the E90

But if error code E90 cannot be prevented, then resetting it is usually not difficult. The first and most common way to solve the problem is to reboot the “home assistant”. Simply turn off the dryer for 10-15 minutes and then try running the cycle again. If after these manipulations the fault code does not disappear, then the reason is not a one-time failure. In this case, it is better to seek help from a repairman who will carefully carry out diagnostic work.

• Disconnect the equipment from the power supply and sewerage.
• He will open the machine body to gain free access to all key components of the system.
• Check wiring and grounding.
• If necessary, he will restore the damaged circuit and replace failed elements.
• Will assemble and reconnect the Bosch dryer to all communications.

In addition, repairs at a service center are better than independent intervention due to the fact that after the work the client receives a guarantee for the work performed, so he can quickly fix the problem if something happens to the device again.

Also, contacting a service center is the only reliable way to replace a damaged control module, which should only be handled by an experienced specialist. If this particular part in your equipment fails, then be prepared to spend a lot of money, because this is an extremely expensive component, without which the dryer cannot work.

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