Tristar
Thermal or Overcurrent Trip Without Display Code
Vacuum turns on but shuts off after 5–10 seconds with no error indication.
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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 causing high load, Failing main motor drawing excess current, Loose battery connection causing voltage drop
How to Fix / Troubleshooting
Safety first: Remove the battery pack before cleaning or inspecting internal parts.
- Clean filters thoroughly: Remove and clean both pre-motor and HEPA filters as per the manual. Ensure they are completely dry before reinstalling.
- Check for blockages: Inspect the dust bin, cyclone, wand, and nozzle for obstructions that could increase motor load.
- Inspect battery fit: Ensure the battery clicks firmly into place and does not wobble. Clean the contacts with a dry cloth.
- Test without attachments: Run the vacuum as a handheld unit without the wand or nozzle. If it runs longer, the problem may be in the floor head or wand.
- Persistent short runtime: If the unit still shuts off quickly with clean filters and no attachments, the motor or control board may be failing and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Tristar Main Suction Motor Assembly
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