Thermador Range Error Code Er:23

Er:23 indicates that the WFR 2460 washer module built into your Thermador range has detected an excessive foam condition during operation. The appliance halts the cycle automatically to prevent overflow or pump damage. This is most often caused by using the wrong type of detergent or using too much of it. Correcting the detergent and rinsing the washer compartment usually resolves the issue.

Er:23 itself is not an immediately dangerous error, but it should not be ignored. Foam overflow can spill into electrical components or other parts of the appliance, potentially causing damage or creating a slip hazard. The appliance is designed to stop operation when this error occurs, which limits risk. Address the root cause promptly before resuming normal use.

If the issue is simply a detergent problem, the cost to resolve Er:23 is minimal, covering only any cleaning supplies needed. If a faulty foam sensor is diagnosed as the cause, repair costs including parts and labor typically range from around $150 to $400 or more depending on service rates in your area. Getting a diagnostic assessment from a certified Thermador technician will provide a more precise estimate for your specific situation.

Start by identifying and removing the source of excess foam, which is typically an incompatible or overused detergent. Thoroughly clean the drum and sump area to eliminate any residual soap buildup. Run a rinse or clean cycle with no detergent added to flush remaining suds. If the error persists after these steps, the foam sensor may need to be inspected or replaced by a qualified technician.

A reset may temporarily clear the code, but if the underlying cause such as incorrect detergent or residual soap buildup is not addressed, the error will return during the next cycle. It is important to correct the detergent type and clean the washer compartment before resetting. Simply power cycling the appliance without resolving the foam source is not a long-term fix.