Siemens Dishwasher Error Code E31 Meaning and Possible Fixes
Siemens Dishwasher Error Code E31
If your Siemens dishwasher displays error code E31, this indicates a fault in the drying system or that the water is not heating up during operation.
Siemens dishwashers use a heating system to heat water during the wash cycle and to assist with drying at the end of the programme. If the appliance detects that the water is not heating or that the drying system has developed a fault, it will display the E31 error code.
View all Siemens dishwasher error codes
What the E31 Error Means
The E31 error code indicates a fault in the drying system of your Siemens dishwasher. The water is not heating up during operation and the dishwasher is not drying correctly as a result. This fault can only be resolved by a qualified engineer.
Common Reasons This Error Appears
Faulty heating element
The heating element may have failed and is no longer able to heat the water during the wash cycle or assist with the drying process.
Faulty temperature sensor
The temperature sensor monitors the water temperature during the cycle. If it has failed or is giving incorrect readings, the machine may not heat correctly and may display this error.
Limescale buildup on the heating element
In hard water areas, limescale buildup on the heating element can reduce its efficiency and eventually prevent it from heating the water adequately.
Faulty drying system component
A component within the drying system such as a fan or relay may have failed, affecting the drying process.
Control board fault
The control board may have developed a fault affecting how it manages the heating and drying systems.
Safe Checks You Can Try
Run a descaling cycle
In hard water areas, run a dedicated dishwasher descaler through an empty hot cycle. Limescale on the heating element can sometimes cause heating and drying faults.
Check rinse aid level
Ensure the rinse aid reservoir is topped up as this assists the drying process and helps water run off dishes more effectively.
Restart the dishwasher
Switch the appliance off using the on/off button, wait a few minutes, then switch it back on and start a new cycle. This can sometimes clear a temporary fault.
If You Need Spare Parts
If you are confident carrying out the repair yourself, compatible Siemens dishwasher parts are available on Amazon with next day delivery.
Always check your model number before ordering to ensure compatibility.
When To Contact A Professional
If the E31 error code continues to appear after trying the checks above, the heating element, temperature sensor or drying system will need to be inspected by a qualified engineer. This fault can only be permanently resolved with professional repair work.
Internal components should only be inspected or repaired by trained professionals.
Related Siemens Dishwasher Error Codes
You may also encounter related issues indicated by Siemens Dishwasher Error Code E09 and Siemens Dishwasher Error Code E11.
Error codes may vary slightly between different Siemens dishwasher models, so always consult the manufacturer documentation for your specific appliance.
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