Error code E90 on a Bosch tumble dryer

Even the most expensive household appliances aren't immune to one-time malfunctions and other minor issues that can easily be resolved at home. If you've encountered the E90 error on your Bosch dryer, there's no need to worry. This problem is very common and well-studied. Let's take a detailed look at what to do if the self-diagnostic system detects that something has prevented your "home assistant" from completing its cycle.

What kind of breakdown are we talking about?

The E90 error code we're interested in typically occurs because the control module has detected a failure in a specific electronic component. In this case, the cause of the malfunction may lie in one or more key components. So, what should you check yourself?

• Power supply. First, make sure the problem can't be resolved by simply reconnecting the dryer to the power outlet. Someone may have accidentally pulled the plug, or the power may have been turned off. It's worth checking this as well. power cord for integrity.
• Overheating. The next step is to inspect the dryer for possible overheating. This can occur due to overloading the drum, as well as clogged filters or vents, which need to be cleaned periodically. If the problem is indeed high temperature, simply wait until the dryer cools completely and then restart it.
• Heating element relay contacts.
• Power supply capacitor.
• Pressure sensor.
• Main control module.

If you suspect that a faulty part of your washing machine needs repair, it's best to call a service center specialist to avoid accidentally damaging the device further.

Most often, the E90 error code appears not due to damaged components, but rather due to a one-time system failure that requires no action. Experts agree that this occurs due to an imperfect Bosch self-diagnostic system, making it impossible to fix the problem yourself.

Understanding the E90

But if the E90 error code cannot be prevented, 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, then try restarting the cycle. If the error code persists after these steps, the cause is not a one-time malfunction. In this case, it's best to contact a repair technician for a thorough diagnostic.

• Disconnect the equipment from the power grid and sewerage system.
• Open the machine's body to gain free access to all key system components.
• Check the wiring and grounding.
• If necessary, it will restore the damaged circuit and replace the failed elements.
• Will reassemble and reconnect your Bosch dryer to all utilities.

Furthermore, repairs at a service center are better than doing it yourself because the customer receives a warranty on the work performed, so they can quickly fix the problem if something happens to the device again.

Calling a service center is also the only reliable way to replace a damaged control module, which should only be handled by a trained technician. If this is the part that's broken in your dryer, be prepared for significant expenses, as it's an extremely expensive component without which the dryer won't function.

   

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