F84
Miele Detergent Dispenser Actuator Fault

F84 appears; detergent dispenser may not open or may open at the wrong time.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Defective dispenser solenoid or motor, Jammed dispenser lid, Broken dispenser spring, Wiring fault to dispenser

How to Fix / Troubleshooting

Safety: Unplug the dishwasher before working on the door.

  • Check for obstruction: Ensure dishes or large items are not blocking the dispenser lid from opening.
  • Inspect dispenser: Remove the inner door panel to access the dispenser. Check for broken hinges or springs and clean any detergent buildup.
  • Test actuator: Measure the resistance of the dispenser solenoid or motor. Replace the dispenser assembly if open-circuit or mechanically damaged.
  • Reassemble and test: Refit the door panel and run a short program to confirm proper dispenser operation.
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Repair Difficulty

Medium 3/5

Required Part

Detergent Dispenser Assembly
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