Error codes for BOSCH and SIEMENS washing machines

Bosch and Siemens logoWashing machines are able not only to wash clothes, but also to detect a malfunction if one occurs. More models have the ability to perform self-diagnosis. That is, they inform about a breakdown using an error code.

In those moments when a failure or malfunction occurs, the Bosch washing machine, like many other models, displays letters and numbers on the display. These letters and numbers are used to code the breakdown that appears. It's extremely convenient. After all, the same symptoms can appear when different parts of the machine break down.

And then she herself reports what needs to be checked. Whether you call a professional or decide to do the repairs yourself, in any case this will make the job easier. But in order for the essence of the malfunction to become clear to you, you need to decipher the code displayed on the display. Next, we will present you with a list of codes and their interpretation.

BOSCH and SIEMENS error code table

Code Why did the error occur? What's broken and what should I do?
F01 The washing machine door is open or closed, but not tightly. Make sure the hatch is locked. Also check that dirty laundry is not pressed against the hatch. And close it tightly.
F02 Lack of water
  • The water inlet filter is clogged.
  • The water supply is cut off (check the tap).
  • Low pressure or complete absence of water in the water supply.
F03 Water does not drain This code occurs if within 10 minutes. the water has not left the tank.

  • Make sure the drain pump is in good condition. Turn the impeller, it should move without problems.Make sure there are no breaks.
  • Check the drain pump filter and pipes for blockages.
  • There is also a possibility that the electronics module has broken down (less often).
F04 There is a leak It is necessary to locate the leak and restore the seal.
F16 Hatch open
  • The wash does not start.
  • Restart it.
  • Make sure the hatch is tightly locked.
F17 The tank did not fill with water.

  1. The strainer located at the junction with the inlet hose is clogged.
  2. Very low pressure in the water supply.
  3. The tap is closed.
  • Make sure that the filter is cleaned, the tap is open and the water flows at normal pressure.
  • Try restarting the washing machine.
F18 The water did not drain within the specified time.

  1. The level sensor is broken.
  2. The drain pump or system is clogged.
  3. The drain pump is broken.
  4. The level relay switch is stuck.
  • Make sure there are no blockages in the drain system (pipes, filter and pump).
  • If within 90 seconds. the water does not drain, all actions will be cancelled.
F19 The water did not heat up in the set time.

  1. Low voltage in the electrical network.
  2. The heating element (heating element) is broken or exposed to limescale.
  3. Problems in the heating system.
  • Make sure that the heating element, contacts, and wires are in good condition.
  • Washing will take place without heating the water.
F20 Unplanned heating of water.

  1. Damage to the heating element relay.
  2. Water heating occurs unplanned in the program.
  3. The temperature sensor (NTC) may be faulty.
 The program is canceled and the breakdown mode is activated.
F21 Failure of the control system, incorrect operation of the electric motor, or the engine does not turn the drum.

  1. The reversing relay is broken.
  2. The triacs have shorted out.
  3. The tachogenerator has become unusable.
  • The engine continues to try to work until the specified program is completed.
  • Or after the engine does not start working, the breakdown mode is activated.
F22 Temperature sensor failure.

  1. He shorted.
  2. Out of order.
  3. Wiring problems.
 The wash will finish without heating the water.
F23 The Aquastop system has been activated.

  1. Water leaks and gets into the pan of the machine.
  2. The connection has been interrupted. chains.
  • Make sure there is no open circuit.
  • Make sure that Aquastop is working properly.
  • Make sure there are no leaks.
F25 Damage to the sensor that checks the level of water contamination.

  1. Blockage in the drain system.
  2. Level sensor failure.
  3. Limescale deposits on the sensor.
 The wash will take place without a rinse cycle.
F26 The sensor, which is responsible for the absence of malfunctions from electrical voltage, has broken down. The pressure switch could also become unusable. A critical error occurs. The set washing program is cancelled. The pump drains all the water, the hatch is locked in the closed position, the indication and control are locked.

  1. To reset the error, turn the washing machine on and off.
  2. Make sure the pressure switch is working properly.
  3. Make sure there is no open circuit.
F27 Problems in the operation of the pressure switch. Breakage of this part. Work continues.

  • Make sure the wires are intact.
  • Make sure the flow sensor is working properly.
F28 Flow sensor failure (incorrect data from it).
  • Make sure the wires are intact.
  • Check the flow sensor.
F29 The flow sensor does not detect water flow.

  1. The water supply from the water supply is blocked.
  2. Pressure too weak.
  3. The filter mesh does not allow water to pass through due to blockage.
  4. Intake valve failure.
  5. Aquastop breakdown.
  6. Problems with the pressure switch.
 The washing stopped after five minutes and the water will drain. You can then restart the wash.

  • Make sure the wires are intact.
  • Make sure all parts listed in the left column are in working order.
  • Check if the tap is open.
F31 Exceeding the water maximum.

  1. Pump blocking.
  2. Problems with the water removal system (clogging, etc.).
  3. The filling valve is stuck.
  4. The pressure switch is damaged.
 The program will take longer to complete.

  • Make sure the drain pump is working properly.
  • Check for broken wires.
  • Make sure the drain system is working properly.
  • Check the level switch.
  • Make sure the fill valve is working properly.
F34 The door does not lock in the closed position.

  1. The hook is bent or broken.
  2. The lock is broken.
  3. Inelasticity of the gasket.
  4. The door stuck.
 Critical error. The washing process is cancelled, the hatch is blocked, the control and indication are blocked.

  1. In order to clear the error, press the button to turn the machine on and off.
  2. Make sure the wires are intact.
  3. Make sure the lock is in good working order.
  4. Inspect the mechanics.

Table 2 - Bosch and Siemens fault codes

Errors in Bosch and Siemens washing machines - table 2

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10 reader comments

  1. 05/10/2015 at 09:00
    Gravatar Stanislav Stanislav:

    The Siemens VarioPerfect IQ300 washing machine, in the “mixed laundry” and “dark laundry” modes, does not spin out the laundry completely at the end of the wash cycle. You have to additionally turn on the spin mode.How to solve the problem without taking the machine to a service center. Thank you.

    Answer
  2. 07/01/2015 at 10:34
    Gravatar Alexander Alexander:

    Good afternoon We have a Siemens IQ700 washing machine, I can’t open the water pump cover, the cover handle is vertical at 12 o’clock, unscrews to the left only a quarter, doesn’t go any further, and also can’t be removed. Tell me how to unscrew it. ID numbers:
    E-Nr.WM12S47AOE/07 FD9201 200129,
    KD Code^ME257C60110X00110102,
    Sincerely, Alexander

    Answer
    • 01/05/2017 at 16:05
      Gravatar Vlad Vlad:

      The same machine. But as I understand, basically Siemens water pump covers are the same. (And Bosch too). I didn't find any other way out than to remove the front panel. There is one bolt next to the filter cover. It needs to be unscrewed. Then release the latch. It is located to the left and slightly above the lid. The remaining latches can be unfastened by themselves using a screwdriver. Then you need to reach the clamp with pliers and pull the hose off the pump. Remove debris from the filter from the resulting hole. And - Oh, miracle! The lid opens immediately and easily. Reassemble in reverse order.

      Answer
  3. 11/17/2015 at 20:44
    Gravatar Igor Igor:

    Hello! Machine Siemens advantig X10.34. Error F21 appears on the display. Changed the motor brushes. F21 is still blinking. How to reset the display? Or is there another reason for the problem? Thank you.

    Answer
  4. 07/17/2017 at 15:41
    playbob gravatar playbob:

    Siemens error F78, what is it, who knows?

    Answer
  5. 12/10/2017 at 1:47 pm
    Valentine's Gravatar Valentina:

    Good afternoon. The bosch E-NR:WFL16620E/10 FD8511 100192 machine washes in one mode, the others do not work. Tell me, can I fix this myself? Maybe reset the settings or reboot?

    Answer
  6. 01/05/2018 at 13:27
    Gravatar Dmitry Dmitriy:

    Good afternoon The Indesit machine starts the washing mode, pumps in a little water and stops.If you pour water through the powder container, it starts to spin. You fill three buckets - it works. But it doesn’t heat, it just rinses, wrings out - everything is in order.

    Answer
  7. 08/20/2018 at 14:13
    Yuriy's gravatar Yuriy:

    Machine Bosch WLK20264OE. Error E21 popped up during washing.

    Answer
  8. 06/07/2020 at 20:32
    Gravatar Slavik Slavik:

    Good afternoon, Bosch logixx 8 washing machine, error F00 and child lock enabled. Who knows how to solve? The test shows that there are no errors.

    Answer
  9. 08/02/2021 at 21:47
    Gravatar Semyon Semyon:

    Engine, tachometer

    Answer

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