Nilfisk Worn or Faulty Power Switch Assembly

Trigger or power button feels loose or does not always respond

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.

Possible Causes

Mechanical wear of trigger, Broken internal spring, Failing microswitch on PCB, Contamination under button

Safety: Remove the battery before manipulating the trigger or opening the housing.

Check for debris: Inspect around the trigger for dust or foreign objects. Clean with a dry brush.
Test actuation: With the battery installed, press the trigger firmly and observe if the unit starts consistently.
If intermittent: The internal switch or trigger mechanism is likely worn.
Professional replacement: Replacing the trigger or microswitch usually requires opening the handle and should be done by a technician.

Hard 4/5

Trigger Switch Assembly

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