F5
Hoover High Power Mode Current Limit Exceeded

Cordless vacuum shows F5 and will not switch into turbo/boost mode

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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

Partially blocked filters or airflow, Weak battery unable to supply boost current, Failing main motor drawing excess current, Faulty boost mode switch or PCB

How to Fix / Troubleshooting

Safety first: Remove the battery before cleaning or disassembly.

Steps:

  • Clean filters and check for blockages: Ensure airflow is fully restored as described in other entries (bin, filters, wand, floorhead).
  • Fully charge battery: Charge the battery to 100% and then test boost mode. Low charge can prevent high-power operation.
  • Test in normal mode: If normal mode works fine but boost always triggers F5, the battery may be degraded or the motor is near end-of-life.
  • Check boost switch: If your model has a physical boost button, ensure it is not stuck or damaged.

If F5 persists with clean filters and a fully charged battery: The main motor or control PCB may be faulty. Professional diagnosis and possible motor or PCB replacement are recommended.

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Repair Difficulty

Medium 3/5

Required Part

Hoover Main Control PCB
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