Neff Dishwasher Error Code E23 Meaning and Possible Fixes
Neff Dishwasher Error Code E23
If your Neff dishwasher displays error code E23, the appliance has detected a fault with the waste water pump. The machine is unable to drain water out of the tub correctly and has stopped the cycle.
View all Neff dishwasher error codes
What the E23 Error Means
The E23 error code indicates a fault with the drain pump — the component responsible for pumping waste water out of the dishwasher at the end of each cycle phase. If the pump is blocked, jammed or has failed, water will remain in the tub and this error will be displayed.
Common Reasons This Error Appears
Blocked drain pump
Food debris, broken glass, labels or other small objects can enter the drain pump and prevent the impeller from turning, stopping water from draining.
Blocked filters
If the filter assembly is heavily soiled, water cannot flow freely to the drain pump and drainage will be restricted.
Blocked or kinked drain hose
A bent, kinked or partially blocked drain hose will prevent water from leaving the machine even if the pump is functioning correctly.
Blocked household drain
A blockage in the sink trap or household drain that the dishwasher connects to can prevent water from escaping.
Faulty drain pump motor
The drain pump motor may have failed and is no longer able to expel water from the machine.
Safe Checks You Can Try
Clean the filters
Remove and thoroughly clean the filter assembly at the bottom of the tub to ensure water can flow freely to the drain pump.
Check the drain hose
Inspect the drain hose at the back of the machine for any kinks or blockages. Ensure it is not pushed too far into the standpipe.
Check the household drain
Run water through the sink to confirm the drain the dishwasher connects to is not blocked.
Restart the dishwasher
Turn the appliance off at the mains for a few minutes before restarting to clear any temporary fault.
If You Need Spare Parts
If you are confident carrying out the repair yourself, compatible Neff 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 E23 error persists after cleaning the filters and checking the drain hose, the drain pump may need to be cleared of obstructions or replaced by a qualified engineer.
Internal components should only be inspected or repaired by trained professionals.
Related Neff Dishwasher Error Codes
You may also encounter related issues indicated by Neff Dishwasher Error Code E24 and Neff Dishwasher Error Code E25.
Error codes may vary slightly between different Neff dishwasher models, so always consult the manufacturer documentation for your specific appliance.
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