Error codes washing machine Neff

Error codes Meaning Causes of How to troubleshoot
OPEN Failure of the electronic door lock. Malfunction of the main unit.

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

The main module could also fail.

  1. Checking and replacing the UBL( electronic hatch lock).
  2. Inspection and repair of the control board.
E01 What does code E01 mean: Aquastop protection signal. The operation of Aquastop in a washing machine Neff speaks of a water leak in the system. Carefully inspect the surface and CM assemblies at the time of leakage. Eliminate the leak.
E05 No water in the tank. If the code E05 appears, it is likely that the emergency discharge of water has started, or the drain pump is faulty. To solve the problem:
  1. The system is checked for leakage.
  2. Inspected pump.
  3. Installs a new pump in the event of a malfunction.
E06 What does E06 code mean: water does not drain. What's up:
  • Pump and module wiring is broken.
  • Defective drain pump.
  • Breaking control board.
What to do:
  1. Examines the wiring. Isolate damaged areas, or replaced with a train.
  2. Replaced pump.
  3. Repairing or replacing the board.
E07 A leak has occurred( for SMA with drying). If the error E07 was highlighted, it means that the tightness at the junction of the pipes and hoses is broken. Checking nodes at the time of leakage.
E16 The hatch door is not tightly closed. When the CM issues a DTC E16, it means:
  • There was a problem with the mechanical door lock.
  • Broken handle.
  • Faulty lock.
  • A problem with the control unit.
How to fix the situation:
  1. Replace the lock, UBL or door handle.
  2. Install a new electronic unit.
E17 There is no water in the tank. Why:
  • Insufficient pressure in the aqueduct.
  • Clogged water intake system.
  • Fault of the pressure switch of the washing machine Neff.
How to remove the error E17 with your own hands:
  1. Check the water pressure. Turn the stop valve.
  2. Clean the inlet hose, filter, and intake valve from clogging.
  3. Inspect the pressure switch. Clean the tube, replace the part if it breaks.
E18 E18 means that the water does not drain. Cause of failure:
  • There was a blockage in the drain filter, pipe.
  • Pump malfunction.
Your actions:
  1. Clearing the clogging of the drain filter and pipe.
  2. Inspection of the pump for clogging. Clearing, replacement at malfunction.
E19 Error E19 means that the water heating does not correspond to the set temperature. What happened:
  • The heating element burned out( TEN).
  • Heater temperature sensor is defective.
To reset the error is needed:
  1. Replacement of heating elements or descaling.
  2. Installing a new temperature sensor.
E20 Incorrect water heating. If the CM shows on the display the error E20, there are problems with the heater relay or the thermal sensor. Swipe:
  1. Replace relay.
  2. Installation of a good sensor.
E21 Code E21 indicates a motor malfunction. If the engine stopped working, the following events occurred:
  • Worn electrical brushes.
  • Motor breakdown.
  • Main module malfunction.
Possible solutions:
  1. Change of brushes for the washer motor.
  2. Reinstall the electric motor.
  3. Testing and replacing the module.
E22 / E29 Water intake error. Malfunction E22 / E29:
  • The pressure switch is faulty or its tube is damaged.
  • The control board has failed.
What can be done:
  1. Need to replace the tube or the pressure switch itself.
  2. Inspection and repair of 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:
  • A blockage occurred in the sensor tube.
  • The handset is bent or disconnected.
  • Stuck contacts pressostat.
  • Faulty sensor and module wiring.
Corrective action:
  1. The handset is being cleaned or replaced.
  2. Wiring is reinstalled, contacts are repaired.
  3. A new pressure sensor is being installed.

The function of self-diagnosis is incorporated in Neff washing machines by the manufacturer. The system checks the operation of all the erasers, when it detects a malfunction, it displays an error code on the board.

To know how to fix the problem, you need to decipher the code. The error table below presents all faults specific to this brand. You will learn what to do when an error appears on the display, how to correct the situation yourself.

CMA Neff

Fault Codes After finding out what the error codes in the Neff washing machine mean, you can start an independent repair. Always adhere to safety instructions before starting work.

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