Error codes for washing machines Neff (Neff) – meaning

Error Codes Value Causes of appearance How to troubleshoot OPEN Failure of the electronic door lock. Main unit failure.

If the OPEN error is on the display, it means that the door lock has broken and it is not tightly closed.

The main module could also fail.

1. Checking and replacing UBL (electronic sunroof lock).
2. Inspection and repair of the control board.

E01 What does code E01 mean: Aquastop protection signal. The operation of Aquastop in the Neff washing machine indicates a water leak in the system. Carefully inspect the surface and components of the CM at the time of leakage. Eliminate the leak. E05 No water in the tank. If code E05 is displayed, it is likely that the emergency water drain has turned on, or the drain pump is faulty. To solve the problem:

1. The system is checked for leaks.
2. The pump is inspected.
3. A new pump is installed in case of malfunction.

E06 What does code E06 mean: water does not drain. What’s happened:

• Broken pump and module wiring.
• Drain pump malfunction.
• Control board failure.

What do we have to do:

1. Wiring is being looked at. Damaged places are isolated, or the cable is replaced.
2. The pump is being replaced.
3. The board is being repaired or replaced.

E07 A leak has occurred (for CMA with dryer). If error E07 is displayed, it means that the tightness is broken at the junctions of pipes and hoses. Checking nodes at the time of leakage. E16 The hatch door is not tightly closed. When the CM issues an E16 fault code, it means:

• There is a problem with the mechanical door lock.
• The handle is broken.
• Faulty blocker.
• There is a problem with the control unit.

How to fix the situation:

1. Replace lock, UBL or door handle.
2. Install a new electronic unit.

E17 There is no water in the tank. Why:

• Insufficient pressure in the water supply.
• Clogged water intake system.
• Malfunction of the pressure switch of the Neff washing machine.

How to remove the error E17 with your own hands:

1. Check water pressure. Turn the shut-off valve.
2. Clean the inlet hose, filter, intake valve from clogging.
3. Check the pressure switch. Clean its tube, replace the part if it breaks.

E18 E18 means that the water does not drain. Cause of malfunction:

• There was a blockage in the drain filter, pipe.
• Pump malfunction.

Your actions:

1. Cleaning of clogged drain filter and pipe.
2. Check the pump for blockage. Cleaning, replacement in case of malfunction.

E19 Error E19 means that the water heating does not correspond to the set temperature. What happened:

• The heating element (TEH) burned out.
• Heater temperature sensor defective.

To reset the error you need:

1. Replacing the heating element or descaling.
2. Installing a new temperature sensor.

E20 Wrong water heating. If the CM shows error E20 on the display, there is a problem with the heating element relay or the temperature sensor. Swipe:

1. Relay replacement.
2. Installing the right sensor.

E21 The code E21 means a malfunction of the electric motor. If the engine stopped working, the following occurred:

• Wear of electric brushes.
• Engine failure.
• Main module failure.

Possible solutions:

1. Changing the brushes of the washing machine.
2. Reinstallation of the electric motor.
3. Module testing and replacement.

E22/E29 Water intake error. Fault E22 / E29:

• The pressure switch is faulty or its tube is damaged.
• The control board has failed.

What you can do:

1. You need to replace the tube or the pressure switch itself.
2. Checking and repairing the board.

E23, E24, E25, E26, E27, E28, E29 Incorrect operation of the water level sensor. For what reason errors E23, E24, E25, E26, E27, E28, E29 are displayed:

• There is a blockage in the sensor tube.
• The tube is kinked or disconnected.
• Pressure switch contacts stuck.
• Faulty sensor and module wiring.

Troubleshooting Instructions:

1. The tube is cleaned or replaced.
2. The wiring is reinstalled, the contacts are repaired.
3. A new pressure sensor is installed.