F5
Toshiba Over‑current / Short Circuit Protection

Vacuum shows F5; LED lights may flash and unit will not start

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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

Shorted motor windings, Shorted wiring harness in wand or nozzle, Foreign metal object bridging contacts, Faulty main PCB power MOSFET

How to Fix / Troubleshooting

Safety first: Remove the battery immediately. Do not continue trying to power the unit; this can damage the battery and electronics.

  • Step 1 – Inspect for visible shorts: Check the wand and nozzle connectors for metal objects (paperclips, staples) or burnt marks. Remove any foreign objects.
  • Step 2 – Isolate attachments: Try powering the main body alone (no wand, no nozzle). If it starts without F5, reconnect attachments one by one to identify which component causes the fault.
  • Step 3 – Replace faulty attachment: If F5 appears only with a specific nozzle or wand, that part likely has an internal short and should be replaced.

When to call a technician: If F5 appears even with the bare main body, the motor or main PCB is likely shorted. Professional diagnosis and replacement of the motor or PCB is required.

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Repair Difficulty

Hard 4/5

Required Part

Wand Wiring Harness
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