Category: Bosch

  • How to Fix Bosch Dishwasher Error E28

    How to Fix Bosch Dishwasher Error E28

    Error Code: E28 Difficulty: Hard

    Problem: AquaSensor (turbidity sensor) fault.

    How to Fix E28 Error (Step-by-Step)

    1. Disconnect the dishwasher from power and water supplies for safety.
    2. Carefully pull the dishwasher out from under the counter to access its components.
    3. Locate the AquaSensor, which is usually found in the sump area at the bottom of the dishwasher tub.
    4. Disconnect the wiring harness attached to the old sensor and confirm the error stays cleared during a full test cycle.
    5. Remove the old sensor by twisting it counter-clockwise and pulling it out.
    6. Install the new AquaSensor by pushing it in and twisting it clockwise to lock it into place.
    7. Reconnect the wiring harness, slide the dishwasher back into place, and restore power and water.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Next Steps and Parts

    Verified Compatible Alternatives:

    • 00424099
    • 00611317

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Washer Error F34

    How to Fix Bosch Washer Error F34

    Error Code: F34 Difficulty: Moderate

    Problem: Door lock error.

    How to Fix F34 Error (Step-by-Step)

    1. Make sure the washer door is fully closed and that no clothing is caught in the latch.
    2. Unplug the washer for at least 5 minutes to reset the control board, then plug it back in and try again.
    3. If the error continues, the door lock assembly is likely faulty. To replace it, first, unplug the washer.
    4. Open the washer door and remove the metal or spring clamp that holds the door boot seal in place.
    5. Peel back the door boot seal to access the door lock assembly.
    6. Disconnect the wiring harness from the door lock and remove the screws holding it in place.
    7. Install the new door lock assembly, reconnect the wiring, and reassemble the door boot seal and clamp.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Dishwasher Error E09

    How to Fix Bosch Dishwasher Error E09

    Error Code: E09 Difficulty: Hard

    Problem: Internal heater fault within the heat pump.

    How to Fix E09 Error (Step-by-Step)

    1. Turn off the power to the dishwasher at the circuit breaker.
    2. Shut off the water supply to the dishwasher and confirm the error stays cleared during a full test cycle.
    3. Carefully slide the dishwasher out from its installation space and confirm the error stays cleared during a full test cycle.
    4. Lay the dishwasher on its back to access the heat pump at the bottom.
    5. Disconnect the electrical connectors and hoses attached to the heat pump assembly.
    6. Remove the screws or clips holding the heat pump in place and remove the old unit.
    7. Install the new heat pump assembly, reconnect all hoses and electrical connectors, and secure it in place before reassembling the dishwasher.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Next Steps and Parts

    Verified Compatible Alternatives:

    • Heat Pump Assembly

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Dishwasher Error E04

    How to Fix Bosch Dishwasher Error E04

    Error Code: E04 Difficulty: Hard

    Problem: Faulty electronics in the self-test, often related to the heater.

    How to Fix E04 Error (Step-by-Step)

    1. Disconnect the dishwasher from its power source and confirm the error stays cleared during a full test cycle.
    2. The flow sensor is located in the water inlet assembly. You will need to pull the dishwasher out from under the counter to access this on the side.
    3. Disconnect the hoses and wire harness from the flow sensor assembly and replace it with the new part.
    4. The heating element is located at the bottom of the dishwasher tub. You will need to access the bottom of the dishwasher.
    5. Disconnect the wires from the heating element terminals. Use pliers to remove the nuts holding the element in place.
    6. Gently pry out the old heating element and install the new one, ensuring the rubber seals are seated correctly.
    7. Reconnect all wires and hoses, slide the dishwasher back into place, restore power, and test.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Next Steps and Parts

    Verified Compatible Alternatives:

    • Heating Element

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Washer Error F37

    How to Fix Bosch Washer Error F37

    Error Code: F37 Difficulty: Hard

    Problem: Faulty NTC (temperature sensor).

    How to Fix F37 Error (Step-by-Step)

    1. Unplug the washing machine from the power outlet and confirm the error stays cleared during a full test cycle.
    2. Access the back of the machine to locate the NTC sensor on the heating element.
    3. Disconnect the wiring from the sensor and confirm the error stays cleared during a full test cycle.
    4. Carefully unclip or unscrew the old NTC sensor from its housing.
    5. Install the new NTC sensor, making sure it is securely in place.
    6. Reconnect the wiring to the new sensor and confirm the error stays cleared during a full test cycle.
    7. Reassemble the back panel and test the machine and confirm the error stays cleared during a full test cycle.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Washer Error F38

    How to Fix Bosch Washer Error F38

    Error Code: F38 Difficulty: Hard

    Problem: Fault NTC (temperature sensor) short circuit.

    How to Fix F38 Error (Step-by-Step)

    1. Disconnect the washer from its power source and confirm the error stays cleared during a full test cycle.
    2. Open the top or back panel to access the internal components.
    3. Locate the 3D sensor, which is typically mounted on the tub assembly.
    4. Disconnect the wiring harness connected to the sensor and confirm the error stays cleared during a full test cycle.
    5. Remove the screws or clips holding the 3D sensor in place and remove it.
    6. Mount the new 3D sensor and secure it and confirm the error stays cleared during a full test cycle.
    7. Reconnect the wiring harness and reassemble the washer and confirm the error stays cleared during a full test cycle.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Washer Error F40

    How to Fix Bosch Washer Error F40

    Error Code: F40 Difficulty: Easy

    Problem: Synchronization error.

    How to Fix F40 Error (Step-by-Step)

    1. Turn the washing machine off by turning the dial to the ‘Off’ position.
    2. Unplug the washer from the power outlet and confirm the error stays cleared during a full test cycle.
    3. Wait for at least 5 minutes to allow the internal electronics to reset.
    4. Plug the washer back into the power outlet and confirm the error stays cleared during a full test cycle.
    5. Turn the dial to a wash cycle and press ‘Start’.
    6. If the error persists, check for any visible loose connections on the control board (if comfortable doing so after unplugging the machine).
    7. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Washer Error F43

    How to Fix Bosch Washer Error F43

    Error Code: F43 Difficulty: Hard

    Problem: Motor error.

    How to Fix F43 Error (Step-by-Step)

    1. Disconnect the washing machine from the power supply and confirm the error stays cleared during a full test cycle.
    2. Remove the rear panel to get access to the motor.
    3. Take a picture of the wiring connections to the motor for reference.
    4. Disconnect the wiring harness and any ground wires from the motor.
    5. Loosen and remove the bolts that secure the motor to the tub.
    6. Carefully remove the motor from the machine and confirm the error stays cleared during a full test cycle.
    7. Install the new motor, secure it with the bolts, and reconnect all wiring as per your reference picture.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Washer Error F44

    How to Fix Bosch Washer Error F44

    Error Code: F44 Difficulty: Hard

    Problem: No motor rotation.

    How to Fix F44 Error (Step-by-Step)

    1. Ensure the washer is unplugged from the wall outlet and confirm the error stays cleared during a full test cycle.
    2. Remove the back panel of the washer to expose the motor.
    3. Locate the carbon brushes on the motor assembly and confirm the error stays cleared during a full test cycle.
    4. Disconnect the electrical connectors attached to the brushes and confirm the error stays cleared during a full test cycle.
    5. Unscrew or unclip the brush holders to remove the worn carbon brushes.
    6. Insert the new carbon brushes into the holders, ensuring they make good contact with the motor’s commutator.
    7. Re-secure the brush holders and reconnect the electrical connectors and confirm the error stays cleared during a full test cycle.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.




  • How to Fix Bosch Washer Error F59

    How to Fix Bosch Washer Error F59

    Error Code: F59 Difficulty: Hard

    Problem: 3D sensor: measurement error too high or too low.

    How to Fix F59 Error (Step-by-Step)

    1. Disconnect the washer from power and confirm the error stays cleared during a full test cycle.
    2. Access the 3D sensor, usually located on the tub and confirm the error stays cleared during a full test cycle.
    3. Check the wiring between the 3D sensor and the control board for any damage or loose connections.
    4. If the wiring is intact, replace the 3D sensor and confirm the error stays cleared during a full test cycle.
    5. If the error persists after replacing the sensor, the control board may be faulty and require replacement.
    6. To replace the control board, carefully label and disconnect all wire harnesses.
    7. Remove the old board, install the new one, and reconnect all harnesses.
    8. Turn the appliance off, wait about 2 minutes, then turn it back on.

    Verified Compatible Alternatives:

    • Control Board

    Still Not Working?
    If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.