Siemens Dryer Error e90

What does this fault affecting your Siemens dryer mean?

When you have a Siemens dryer, you know you've acquired one of the devices from a brand with a very good reputation in the market. However, like any electrical appliance, it can have faults in its operation, especially when it doesn't have an adequate power supply or has suffered an unexpected power surge.

The fault of error code e90 in Siemens dryers is a failure that indicates a fault with the dryer's electrical system. This means that the dryer may have had an unpleasant encounter with a power surge or there is a fault with the electrical supply reaching the dryer, so you will need to check several things to reach the most appropriate solution.

We're going to show you a small list of causes that can cause this fault in your Siemens dryer:

• Faults in the power supply: An inadequate power supply can cause this problem to occur in your dryer and prevent it from functioning correctly. An unexpected power outage while the dryer is in operation, or a deficient electrical supply, can trigger problems in your dryer.
• Damaged electrical wiring: A defective power outlet or cables in poor condition can cause problems in the operation of your dryer. This can lead to short circuits or false contacts that prevent the normal operation of the dryer.
• Internal wiring in poor condition: The wiring that communicates the internal components of the dryer may be in poor condition, sulfated, broken, or burned. This can generate poor communication between components and cause faults known as the one you're experiencing right now.
• Burned fuses on the electronic board: It may be that one of the fuses protecting the PCB electronic board of the dryer has burned due to an overload in the electrical system. This can prevent the electronic board from receiving the appropriate signal to control the operation of the dryer.

Now that you know the causes that have caused your dryer to malfunction, you have to keep reading and stay with us so you can find the appropriate solution for this fault.

How could the e90 fault of the Siemens dryer be fixed?

This is the list of solutions we have prepared for you, all with the purpose of allowing you to continue using your Siemens dryer normally. Do not skip any of the steps and read them carefully:

1. Restart your Siemens dryer to reconfigure its sensors: If the dryer behaves strangely, then a simple restart may be the solution to this fault. Problems in the power supply can misconfigure the sensors, so we recommend giving it a break. Disconnect it from the power supply for about 10-15 minutes, then reconnect it and turn it on. Wait and check if the error has disappeared. If the problem persists, then we will continue to check things until we find the solution.
2. Check the power supply of your Siemens dryer: Your dryer needs the right energy to function properly. Consult the manufacturer's manual to know the amperage required for your dryer model. Then, check the power supply of your home and the power outlet where you have it connected. Remember that each power outlet has a limit, so we recommend using only one for the dryer and washing machine, and disconnecting other devices connected to the same power line. If you don't have the Siemens manufacturer's manual, try connecting the dryer to another power outlet and see if the problem persists or disappears.
3. Inspect the electrical wiring of your Siemens dryer: The cables that connect the dryer to your home's electrical network are important for its proper operation. Check them carefully and if they are broken, loose, burned, or in poor condition, it will be necessary to replace them or repair them. The wiring must and has to be in perfect condition. Consult the manufacturer's manual or an electrician to know the appropriate measurements and thickness for this type of appliance.
4. Check the internal wiring of your Siemens dryer: Open the dryer and check the terminals and connectors that connect the cables to the PCB electronic board. Make sure they are properly tightened and in the correct place. If you notice any loose or improperly placed ones, tighten or place them correctly. Also, check that they are not sulfated and clean them if necessary. If you notice sulfate, use a specific product to remove it or an electronic cleaner with a bristle brush or a soft sandpaper to clean it.
5. Check the fuses of your Siemens dryer: These components are the first line of protection against adverse power supply. The dryer's fuses act as a protective shield for the PCB electronic board, preventing damage from voltage spikes. If your dryer fails, don't forget to check them. Look for the fuses, usually located near the board or even on the board itself, and check if any are burned. If so, replace it with a new one of the same amperage. Remember that a burned fuse is better than a damaged component.
6. If the problem persists, review everything we have mentioned briefly: If you have followed all the instructions and the problem persists, it is likely that an internal component of the dryer needs to be replaced. Don't worry, a second check is not out of place, but if the problem is not resolved, it's time to call in the professionals. Before contacting technical support, make sure you have carefully reviewed each step we have mentioned. A brief review will allow you to verify that you have not overlooked any important details.
7. Call Siemens or Bosch technical support for a guaranteed solution: If you don't feel comfortable repairing the dryer yourself or if you have doubts about the process, it's best to contact Siemens technical support. They are experts in these appliances and will provide you with the best solution for your dryer. Let them take care of the problem, we are sure we left you in very good hands.

In summary, the fault in your Siemens dryer, where it has shown you the error code e90 on the screen, is a failure in the electrical system, which may have affected your dryer. What can cause this problem in your dryer are several causes, among which we have: a failure in the power supply, electrical wiring that may be in poor condition, loose, poorly placed and/or sulfated connections or burned fuses. But, if you follow the steps we have given you today, you could find a solution to this fault.

A stable power supply is very important to keep all the internal components of your Siemens dryer well protected. We also recommend installing a surge protector or voltage regulator in your dryer's installation to prevent future problems. We hope we have been very helpful to you today. Good luck and have a happy drying!