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If you own a Miele dishwasher, you’re in luck! Many Miele dishwashers have built-in diagnostic systems which allow your appliance to detect a fault or error, and show this on the door panel display. Each dishwasher model has its own set of digital displays specific to that model. There’s an entire range of different digital displays relating to specific dishwasher models.
When you’ve identified the model number of your particular dishwasher, you’ll be able to enter the service mode by following the given instructions in your manufacturer’s manual. As you press the buttons in sequence the system cycle will then run through the possible faults and indicate problems with a fault code, or multiple fault codes.
So, what are the common Miele dishwasher fault codes? Read on to see the meaning of the letters and numbers showing on the display:
| Error Code | Likely Cause | Quick Fix |
|---|---|---|
| F01 / F02 | Control-board or memory fault | Switch off at the wall, wait 5 minutes, restart |
| F11 | Poor drainage (clogged filter or kinked hose) | Remove lower rack, clear filter, straighten drain hose |
| F12 / F13 | Water inlet error (closed stopcock, blocked inlet filter) | Open stopcock, clean inlet filter, check hose |
| F14 | Heater pressure switch fault | Technician replacement of pressure switch |
| F15 | Overfill (sensor stuck) | Drain appliance, reset fault, inspect flood-safety tray |
| F18 / F19 | Flow-meter error (blocked or faulty) | Clean flow-meter filter; if persistent, call engineer |
| F24 / F25 | Heater relay or temperature sensor | Relay contacts or sensor replacement |
| F26 | Boiling protection activated | Allow to cool, reset, test venting valve |
| F32 / F33 / F36 | Door-lock or unlock mechanism fault | Check latch alignment, lubricate striker, replace lock module |
| F70 | Float switch or waterproof system triggered | Drain water, inspect float switch, reset |
| F78 / F79 | Circulation pump or frequency converter fault | Inspect pump wiring, test converter, replace as needed |
| F84; F172–F607 | High-level firmware or safety faults | Full diagnostic via service engineer |
Let’s explore some common Miele dishwasher fault codes
Miele dishwasher fault F11
This error code indicates a problem with water drainage. It could be due to a clogged filter combination in the cabinet, an obstruction in the drain pump caused by objects, deposits in the drain hose or drainage system, or a kinked drain hose. Clearing any blockages and ensuring proper hose alignment may resolve this issue.
DIY checks: Remove the lower spray arm, take out the filter basket, rinse under running water, and straighten the hose behind the machine. If F11 persists, book a drain-pump service with Domex.
Miele dishwasher fault F12/F13
These fault codes signify a water intake error. Check if the stopcock, which controls the water supply, is closed. A clogged water inlet filter or a kinked inlet hose can also cause this error. Additionally, if the water pressure is lower than 0.3 bar, it’s recommended to consult an experienced engineer for further assistance.
DIY checks: Turn off the water, unscrew the inlet hose, clean the mesh filter, reattach and test. For sustained errors, arrange an inlet-valve inspection.
Miele dishwasher fault F14
The F14 error code indicates a problem with the heater pressure switch. This switch is responsible for measuring and regulating the water level inside the dishwasher during the heating process. If it malfunctions, the dishwasher may overfill. Seek professional help to diagnose and fix this issue.
DIY checks: Not recommended. Please contact Domex for a pressure-switch replacement.
Miele dishwasher fault F24
This error code points to an issue with the heater relay contacts. The relay controls the heating system within the dishwasher. If the contacts are faulty, the water won’t heat properly. Repairing or replacing the relay may be necessary.
DIY checks: Unplug, access the relay behind the control panel, look for burn marks. Otherwise book a heating-system service.
Miele dishwasher fault F32
When the door lock fails to close properly, the F32 error code appears. This fault may occur if the door is manually closed too quickly. For dishwashers with automatic door closing features, it’s important to ensure that the mechanism is functioning correctly.
DIY checks: Inspect door latch and striker alignment. Lubricate if stiff. Persistent faults? Arrange a door-lock repair.
Miele dishwasher fault F70
The F70 code indicates a problem with the float switch, which detects the water level inside the dishwasher. If the float switch is defective, it can trigger the activation of the waterproof system, preventing the dishwasher from operating normally. A trained technician can assess and resolve this issue.
DIY checks: Open the base panel, ask someone to pour a little water around the float—listen for a click. No click means replacement is needed. Book a float-switch service.
Miele dishwasher fault F78
This error code relates to a fault in the circulation pump. Potential causes include a disconnection between the electronic components and the circulation pump, a faulty frequency converter electronic device, or abnormal voltage levels affecting the pump’s operation. Expert assistance is recommended to address this fault.
DIY checks: Turn off and unplug, inspect wiring to the pump, look for burnt connectors. For full pump/converter work, call Domex.
Model Variations
Different Miele families introduce slight differences:
G4xxx & G6xxx (2018–2022)
– Standard codes F1–F79 apply.
– No AutoDos codes.
G7xxx / TwinDos (2023+)
– Adds F172–F179 for dosing faults.
– “AutoOpen” icon may appear after cycle end—this is normal.
Integrated PG8000 series
– Hidden LED panel: codes appear only when door is ajar.
– Use “Start” + “Programme” to reset any code.
Miele dishwasher troubleshooting
Want to know where the problem is even if you can’t fix it yourself? Look at tips for troubleshooting here:
Intake/drain indicator flashing
If the intake/drain indicator light is flashing, it signifies an issue with water drainage. Possible causes include a broken impeller on the drain pump, a kinked drain hose, a split-belt drive, or a malfunctioning motor. Additionally, if the dishwasher is connected to a waste disposal unit, food remnants may cause blockages in the drainage pipe. Ensure the water supply is turned on and check the water intake filter for any obstructions.
The display turns off
If the dishwasher display turns off, it may be in standby mode to conserve energy. Simply press any button to reactivate the display. However, if the display remains blank and you can hear button sounds, there may be a software fault that requires an update. Contact a professional technician to perform the necessary update.
If the display is blank and there are audible button sounds this indicates that there is a fault in the software, and an update may be required. You’ll need to arrange a visit from an engineer to carry out this procedure for you.
Looking for Miele dishwasher repairs? Get a free quote
If your dishwasher is experiencing any of the above problems simply contact local appliance repair specialists in London and beyond. You can get a quote and book your engineer online. You’ll even be able to track your repair 24/7! Many types of dishwasher repairs can be undertaken and you’ll get a one-year guarantee on all parts and labour.