When your Miele dishwasher starts acting up, it can be frustrating not knowing what’s going on. Fortunately, these appliances are designed to tell us exactly what problem they’re experiencing through what we call “error codes”. These codes are a combination of letters and numbers that appear on your dishwasher’s display, and each corresponds to a specific issue.
Before we dive into the error code table, let’s clarify some concepts that might be a bit technical but are essential for understanding how to proceed:
- NTC (Negative Temperature Coefficient): Refers to a type of temperature sensor whose resistance decreases as the temperature increases. They are crucial for your dishwasher to properly regulate water temperature.
- Short Circuit: This occurs when there is an incorrect connection in the electrical circuit, allowing current to flow through an unintended path. It can cause serious damage to your appliance.
- Continuity: This term is used to describe whether a circuit is complete, allowing electrical current to flow from one end to the other without interruptions.
With these concepts in mind, we present you with a table of some of the most common error codes you might encounter on your Miele dishwasher, along with a description of each problem, its likely cause, and recommended solutions.
Error | Description | Cause | Solution |
---|---|---|---|
F01 | Water / NTC heating or short-circuited. After this fault has been registered, the heater does not activate and cannot dispense rinse aid. At the end of the program, F01 Technical fault appears on the display. The buzzer is activated for 2 minutes. | NTC R30 temperature sensor or its connection short-circuited. | 1. Check the temperature sensor for continuity. At 68 °F (20 °C), the temperature sensor’s resistance should be approximately 14.9kΩ (± 750Ω); at 77 °F (25 °C), approximately 12kΩ (± 600Ω) (figures just as a guide). 2. Check plug connections. 3. Replace the temperature sensor, if necessary |
F40 | Electronic failure | Replacement of the electronics (coded) | |
F42 | Frequency registration failure | Verify that the line frequency is within certain valid ranges (50 ± 5 Hz or 60 ± 5 Hz) |
Our advice
Before attempting any repairs, make sure to disconnect your dishwasher from the power source to avoid any risk of electrocution. If you do not feel comfortable performing these checks or repairs yourself, we recommend contacting a specialized technician. Remember, it’s better to be safe than sorry.
Error codes in Miele Dishwasher

Error F42 in Miele dishwasher

Error F40 in Miele dishwasher
