Miele Commercial Dishwashers
17 fault codes documented
Fault 403-405 - Water intake problem, program cancelled
The dishwasher display shows 'Check water intake' and the program is canceled because no water entered after several attempts. This indicates an issue with the water supply to the appliance.
Fault 406-408 - Water inlet flow pressure too low
The dishwasher detects that the water flow pressure at the intake point is too low, causing the program to be canceled. This prevents adequate water from entering the machine.
Fault 412-414 - Water inlet flow pressure too high
The dishwasher detects that the water flow pressure at the intake point is too high, causing the program to be canceled. Excessive pressure can be damaging or prevent proper operation.
Fault 492, 504, 541 - Problem starting program, water may be in wash cabinet
The dishwasher encounters a fault when trying to start a program. This can occur if there is residual water inside the wash cabinet, indicating a previous drainage issue.
Fault 550 - Waterproof system activated, potential leak
The dishwasher's internal Waterproof system has detected an issue, likely a leak, and has activated for safety. The program will be stopped to prevent further water damage.
Fault 578 - Peak-load cut-out lasted over 3 hours
The dishwasher has been unable to operate due to a peak-load cut-out from the energy management system lasting longer than three hours. This indicates a prolonged power restriction.
'Program finished' message - Cannot select or start new program
After a program has finished and 'Program finished' is displayed, the dishwasher does not allow a new program selection or start. This is not a fault but a normal state that requires a specific user action.
'Check drainage' message - Water outlet restricted
The dishwasher display shows 'Check drainage', indicating an obstruction in the water outlet or residual water in the wash cabinet. This prevents the dishwasher from effectively draining water.
'Check water intake' message - Problem with water intake
The dishwasher display shows 'Check water intake', indicating a problem with the water supply to the appliance. This is a general message prompting the user to check basic water connections.
Dishwasher stops during program - Circuit breaker tripped
The dishwasher unexpectedly stops operating in the middle of a program. This is often due to the electrical circuit being interrupted.
Dishwasher unresponsive, dark display - Energy-saving shutdown
The dishwasher does not respond when buttons are pressed, and the display and indicator lights are dark. This occurs when the dishwasher has automatically turned itself off after a preset energy-saving switch-off time.
Dispenser cover cannot be closed - Detergent residue blocking latch
The cover for the detergent dispenser cannot be closed properly. This prevents the dispenser from securely holding and releasing detergent during the wash cycle.
Display dark, Start/Stop light off - Dishwasher no power
The dishwasher's display remains dark and the Start/Stop light does not flash after attempting to turn the dishwasher on. This means the dishwasher is not receiving power.
'Peak load cut-out' message - Energy management system active
The dishwasher displays 'Peak load cut-out', indicating that your energy management system has temporarily reduced power to some dishwasher components. This is not a fault, but an energy-saving measure.
'Salt container lid not closed correctly' message
The dishwasher displays a message indicating that the lid for the salt reservoir is not properly sealed. This can affect water softening and dishwasher performance.
Start/Stop button flashes red - General fault detected
The LED on the Start/Stop button flashes red, indicating that a general fault has occurred with the dishwasher. This is a universal alert for any detected malfunction.
Water in wash cabinet at program end - Drainage issue
Water remains inside the wash cabinet after the program has finished (this does not apply to the 'Rapid' program). This indicates a problem with the dishwasher's drainage system.