Miele dishwashers are renowned for their high-quality performance and advanced features, but like any other appliance, they can experience issues. To help users identify and troubleshoot problems, Miele dishwashers are equipped with error codes and indicator lights that point to specific malfunctions. This guide will serve as a one-stop solution for understanding all possible error codes for Miele dishwasher models. From common problems with drainage and water intake to more complex electrical faults, this guide will help you diagnose and resolve your dishwasher issues efficiently.
Miele Dishwasher Error Codes: A Comprehensive Guide
Miele Dishwasher Error Codes
| Error Code | Meaning | Cause | Possible Fix |
|---|---|---|---|
| Check Filters / Setting the Interval | Filters need cleaning or the maintenance interval has been reached. | Clogged filters, maintenance reminder. | Clean the filters and reset the interval in the settings. |
| Drain Indicator Light Flashing | The dishwasher is having trouble draining water. | Blocked drain, clogged filters, faulty pump. | Check the drain hose, clean filters, and ensure pump is operational. |
| Fault F1 | Drainage system fault. | Blocked drain, clogged pump, or filters. | Clear drain hose and filters, check pump function. |
| Fault F2 | Water supply issue. | Low water pressure, blocked inlet valve. | Ensure sufficient water pressure, inspect inlet valve. |
| Fault F11 | Drainage fault in older models (G 1xxx-G 6xxx). | Clogged drain pump or hose. | Check and clean the drain pump and hose. |
| Fault F12 | Water inlet fault. | Blocked or defective inlet valve. | Inspect and replace the water inlet valve if necessary. |
| Fault F13 | Water inlet malfunction. | Low water flow, blocked inlet. | Check water flow and clean the inlet valve. |
| Fault F14 | Water intake fault. | Faulty water inlet system. | Clean or replace the inlet valve. |
| Fault F15 | Severe water inlet fault. | Defective or blocked inlet valve. | Replace the water inlet valve. |
| Fault F18 | Flow meter fault. | Flow meter defect or blockage. | Check the flow meter for obstructions or replace it. |
| Fault F19 | Heating element issue. | Faulty heating element or temperature sensor. | Replace the heating element or temperature sensor. |
| Fault F24 | Heating circuit malfunction. | Electrical or wiring fault. | Check wiring, repair or replace components as needed. |
| Fault F25 | Circulation pump malfunction. | Blocked or defective pump. | Clean or replace the pump. |
| Fault F26 | Sensor fault. | Faulty sensor or wiring. | Inspect and replace the sensor or wiring. |
| Fault F33 | Overfilling protection activated. | Excessive water intake, blocked valve. | Inspect for leaks, blockages, and stop overfilling. |
| Fault F36 | Temperature sensor malfunction. | Faulty sensor or wiring issue. | Replace the sensor or repair wiring. |
| Fault F38 | Control unit malfunction. | Control board failure, electrical fault. | Replace the control unit or inspect wiring. |
| Fault F40 | Communication fault between components. | Control board or wiring issues. | Check the wiring and control board, repair or replace as necessary. |
| Fault F47 | Fan malfunction. | Blocked or defective fan. | Clean or replace the fan. |
| Fault F51 | Motor control fault. | Defective motor or control board. | Inspect and replace the motor or control board. |
| Fault F52 | Pump motor fault. | Blocked or defective motor. | Clear blockages or replace the pump motor. |
| Fault F63 | Control system malfunction. | Hardware or software issues. | Reset the control system, or replace defective components. |
| Fault F67 | Water leak detected. | Leak in hoses, cracked seals, or internal leak. | Fix leaking hoses, replace seals. |
| Fault F68 | Overflow protection activated. | Blocked or malfunctioning water sensors. | Inspect sensors, clear blockages. |
| Fault F70 | Waterproof system activated. | Internal leak or faulty waterproof sensor. | Check for internal leaks, replace waterproof sensor. |
| Fault F78 | Circulation pump fault. | Faulty or blocked pump. | Replace the circulation pump. |
| Fault F79 | Communication fault between components. | Wiring or control board failure. | Check wiring, repair or replace control board. |
| Fault F88 | General fault. | Various electrical or mechanical issues. | Inspect electrical and mechanical components. |
| Fault F91 | Communication error between dishwasher and component. | Faulty wiring or control module. | Inspect and replace wiring or control module. |
Common Issues Indicated by Warning Lights
Check Filters / Setting the Interval
This error indicates that the filters need cleaning or maintenance is due based on the set interval.
- Causes: Clogged filters, maintenance reminder.
- Troubleshooting: Clean the filters thoroughly and reset the maintenance interval through the dishwasher settings menu.
Drain Indicator Light is Flashing
A flashing drain indicator suggests that the dishwasher is struggling to remove water.
- Causes: Blocked drain, clogged filters, or a faulty pump.
- Troubleshooting: Check the drain hose and pump for any blockages, clean the filters, and ensure the pump is functioning properly.
Inlet/Drain Indicator Light is Flashing On and Off
This issue points to a water intake or drainage problem.
- Causes: Clogged filters, blocked inlet valve, or inadequate water supply.
- Troubleshooting: Inspect the water inlet and hose for blockages, clean the filters, and ensure proper water flow.
Rinse Aid or Salt Indicator Light Comes On
When the rinse aid or salt indicator is lit, the dishwasher is running low on either rinse aid or salt.
- Causes: Low rinse aid or salt levels.
- Troubleshooting: Refill the rinse aid or salt reservoir as required.
Salt Reservoir Lid / Close Salt Reservoir Lid
If this warning appears, it means the salt reservoir lid is not closed correctly.
- Causes: Misalignment of the salt lid or debris in the closure mechanism.
- Troubleshooting: Close the lid securely and ensure it is free from any obstructions.
Spray Arm and Mechanical Component Errors
Spray Arm (Bottom, Middle, Top)
This issue arises when one or more spray arms are not functioning properly.
- Causes: Blocked spray arm nozzles, mechanical failure, or misalignment.
- Troubleshooting: Remove any blockages from the spray arms, and ensure they are properly aligned and unobstructed.
Spray Arm Indicator Light Flashing
The flashing spray arm indicator means the dishwasher has detected an issue with the spray arms.
- Causes: Blocked or misaligned spray arms.
- Troubleshooting: Re-align the spray arms and check for obstructions.
Fault Codes Related to Water Supply and Drainage
Fault F1 – Drainage Fault
This fault occurs when the dishwasher cannot drain water.
- Causes: Blocked drain, faulty pump, or clogged filters.
- Troubleshooting: Clean the drain, check the pump, and ensure filters are clear.
Fault F2 – Water Supply Fault
This code indicates that the dishwasher is not receiving enough water.
- Causes: Closed stopcock, blocked inlet valve, or low water pressure.
- Troubleshooting: Ensure the stopcock is open, inspect the water inlet valve, and verify sufficient water pressure.
Fault F11 (G 1xxx-G 6xxx) – Drainage Fault
This code applies to older Miele models and signals an issue with water drainage.
- Causes: Clogged drain pump or hose.
- Troubleshooting: Clear any obstructions in the pump and hose.
Fault F11 (G7 xxx & G5 xxx Discovery from 2019 Onwards) – Drainage Fault
For newer models, this fault indicates a drainage system issue.
- Causes: Blocked filters, faulty pump, or a clogged hose.
- Troubleshooting: Clean the filters, check the pump, and inspect the hose for blockages.
Fault F12 – Water Inlet Fault
The dishwasher is unable to intake water.
- Causes: Blocked inlet valve or low water pressure.
- Troubleshooting: Check the inlet valve and ensure proper water pressure.
Fault F13 – Water Inlet Fault
Similar to Fault F12, this indicates a failure in the water inlet system.
- Causes: Blocked or defective inlet valve.
- Troubleshooting: Inspect and replace the inlet valve if necessary.
Fault F14 – Water Inlet Fault
This error suggests that the water intake system is malfunctioning.
- Causes: Blocked inlet valve or low water flow.
- Troubleshooting: Test and clean the inlet valve and check water flow.
Fault F15 – Water Inlet Fault
A more severe water intake fault.
- Causes: Faulty or defective inlet valve.
- Troubleshooting: Replace the inlet valve or inspect for any malfunctions.
Electrical and Sensor Fault Codes
Fault F18 – Flow Meter Fault
This error occurs when the flow meter fails to function properly.
- Causes: Flow meter defect or blockage.
- Troubleshooting: Check and replace the flow meter.
Fault F19 – Heating Fault
Indicates that the water is not being heated to the correct temperature.
- Causes: Faulty heating element or temperature sensor.
- Troubleshooting: Replace the heating element or sensor as needed.
Fault F24 – Heating Circuit Fault
The heating circuit is malfunctioning.
- Causes: Electrical or wiring issues.
- Troubleshooting: Inspect the wiring and heating components and replace if necessary.
Fault F25 – Circulation Pump Fault
This error code points to a problem with the circulation pump.
- Causes: Blocked or faulty pump.
- Troubleshooting: Clear blockages and replace the pump if required.
Fault F26 – Sensor Fault
This occurs when the dishwasher sensor malfunctions.
- Causes: Wiring or sensor issues.
- Troubleshooting: Inspect and replace the sensor or repair wiring if needed.
Critical Fault Codes Requiring Immediate Attention
Fault F33 – Overfilling Protection Activated
The dishwasher has detected excessive water intake.
- Causes: Blocked inlet valve or overfilling.
- Troubleshooting: Shut off the water supply and inspect for leaks or overfilling.
Fault F36 – Temperature Sensor Fault
The temperature sensor is not functioning correctly.
- Causes: Faulty sensor or wiring.
- Troubleshooting: Replace the sensor or repair the wiring.
Fault F38 – Control Unit Fault
This indicates a control unit malfunction.
- Causes: Electrical faults or a defective control board.
- Troubleshooting: Replace the control board or repair electrical connections.
Fault F40 – Communication Fault
A communication error between dishwasher components.
- Causes: Wiring issues or control board failure.
- Troubleshooting: Check wiring and replace control board if necessary.
Fault F47 – Fan Fault
The dishwasher’s fan is malfunctioning.
- Causes: Blocked or defective fan.
- Troubleshooting: Clean or replace the fan.
Motor and Pump Faults
Fault F51 – Motor Control Fault
The motor control system has failed.
- Causes: Motor or control board malfunction.
- Troubleshooting: Inspect and replace the motor or control board.
Fault F52 – Pump Motor Fault
The pump motor is not functioning properly.
- Causes: Motor failure or obstruction.
- Troubleshooting: Clear any obstructions or replace the motor.
Fault F53 – Pressure Sensor Fault
Indicates an issue with the pressure sensor.
- Causes: Faulty sensor or blocked pressure system.
- Troubleshooting: Test and replace the pressure sensor as needed.
System and Software Faults
Fault F63 – Control System Fault
The control system is not operating correctly.
- Causes: Software or hardware issues.
- Troubleshooting: Reset or replace the control system components.
Fault F67 – Water Leak Detected
This error indicates a water leak within the dishwasher.
- Causes: Cracked hoses, damaged seals, or internal leakage.
- Troubleshooting: Check all hoses and seals, and fix or replace faulty components.
Fault F68 – Overflow Protection Activated
The overflow protection system has detected excessive water intake.
- Causes: Blockages or malfunctioning water sensors.
- Troubleshooting: Inspect water sensors and clear any blockages.
Fault F70 – Waterproof System Activated
This fault occurs when the waterproof system detects a leak or overflow.
- Causes: Internal leaks or sensor malfunction.
- Troubleshooting: Check for internal leaks and replace malfunctioning sensors.
Other Fault Codes and Issues
Fault F78 – Circulation Pump Fault
The circulation pump has failed.
- Causes: Pump motor issues or electrical failure.
- Troubleshooting: Replace the circulation pump.
Fault F79 – Communication Fault Between Components
The dishwasher is not receiving communication between its components.
- Causes: Wiring or control board issues.
- Troubleshooting: Test wiring and control board.
Fault F84-F88 – Multiple Faults
These faults indicate various electrical or system issues.
- Causes: Electrical, sensor, or control board problems.
- Troubleshooting: Inspect and replace the faulty components.
Conclusion
In conclusion, understanding Miele dishwasher error codes can significantly simplify the troubleshooting process, saving time and potentially avoiding costly repairs. This comprehensive guide has covered the most common issues users may encounter, from water supply faults to sensor malfunctions and electrical problems. By identifying the specific error code, users can address these malfunctions effectively, whether through simple DIY fixes or by knowing when to call in professional assistance. With this knowledge, you can keep your Miele dishwasher running smoothly and efficiently for years to come.