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How do I fix error code E09 on a Bosch dishwasher?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

The Bosch Dishwasher Error Code E09 is displayed when the water heating element has failed or is not working properly. This can happen for a number of reasons, such as a power outage or a faulty heating element. In some cases, the error code can be cleared by resetting the dishwasher, but if the problem persists, it will need to be repaired or replaced.

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1. Check the water inlet valve to ensure it is turned on fully

  1. Open the dishwasher door.
  2. Turn the water inlet valve to the "on" position.
  3. Inspect the water inlet valve for any obstructions.
  4. If the water inlet valve is obstructing the flow of water, remove the obstruction.
  5. Turn the water inlet valve to the "off" position.
  6. Inspect the water inlet valve for any obstructions.
  7. Turn the water inlet valve to the "on" position.
  8. Check the dishwasher for any water leaks.

2. Clean the inlet filter and ensure there is no debris blocking the water flow

  1. Open the dishwasher door.
  2. Look for the inlet filter on the front of the dishwasher.
  3. If the filter is dirty, clean it with a soft cloth.
  4. If the filter is not dirty, leave it alone.
  5. Close the dishwasher door.
  6. Press the Clean button.
  7. Check the dishwasher water flow.
  8. If the water flow is satisfactory, press the OK button.
  9. If the water flow is not satisfactory, check the inlet filter.
  10. If the inlet filter is not dirty, replace it with a new one.
  11. Press the OK button to finish the cleaning.

3. Inspect the water hose for kinks or blockages

The first step in inspecting the water hose for kinks or blockages is to remove the water hose from the dishwasher. If the hose is kinked or blocked, the dishwasher will not be able to dispense water. Next, use a hose clamp to attach one end of a hose to the faucet and the other end of the hose to the dishwasher. Turn on the water to the dishwasher and wait until the dishwasher begins to fill up with water. Once the dishwasher is filled with water, use a water hose to carefully expel the water from the dishwasher. If the hose is kinked or blocked, the water will flow back into the dishwasher and the dishwasher will display the e09 error code. If the hose is not kinked or blocked, the dishwasher will not display the e09 error code. Instead, the dishwasher will continue to dispense water normally.

4. Replace the water inlet valve if it is faulty

1.Shut off the power to the dishwasher. 2.Remove the dishwasher's front panel. 3.Locate and remove the water inlet valve. 4.Replace the water inlet valve with a new one. 5.Replace the dishwasher's front panel. 6.Turn on the power to the dishwasher.

5. Contact a Bosch service technician for further assistance

  1. Check if the dishwasher is in proper working order. If it is not, it may be a problem with the dishwasher itself and not the Bosch e09 error code.
  2. If the dishwasher is in proper working order, check to see if the error code is being caused by a dirty dishwasher dishwasher. If the dishwasher is clean, the error code may be caused by a problem with the dishwasher’s electronics.
  3. If the dishwasher is clean and the error code is being caused by a problem with the dishwasher electronics, the technician may need to send the dishwasher in for repair. Alternatively, the technician may be able to fix the problem using a software update.