Grundig Turbo Mode Switch / Control Fault

Turbo or boost button does nothing; vacuum only runs in normal mode.

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

Faulty turbo button switch, Broken wiring between switch and main PCB, Firmware glitch, Turbo mode disabled due to repeated overcurrent events

Safety first: Remove the battery pack before inspecting buttons.

1. Clean around button: Remove dust from around the turbo button. Ensure it is not stuck or jammed.
2. Reset vacuum: Remove the battery for 5 minutes, reinstall, and test turbo again.
3. Check load conditions: Clean filters and clear blockages. Some models limit turbo if airflow is restricted.
4. If still inoperative: The turbo switch or control PCB may be faulty. Replacement of the handle PCB or main PCB is required and should be done by a technician.

Medium 3/5

Handle PCB / Turbo Switch

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