Tristar
Battery or Control PCB Overheating
Vacuum handle or battery area becomes very hot to the touch during normal use.
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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
Blocked cooling vents, Failing battery cells generating excess heat, High resistance at battery contacts, Overstressed control PCB components
How to Fix / Troubleshooting
Safety first: Stop using the vacuum immediately if it becomes uncomfortably hot. Remove the battery pack and allow everything to cool.
- Inspect and clean vents: Locate cooling slots around the battery and main body. Use a soft brush or compressed air to remove dust buildup.
- Check battery contacts: Clean the metal contacts on the battery and vacuum with a dry cloth. Ensure the battery locks firmly into place.
- Limit turbo use: Avoid running on maximum power continuously, especially on thick carpets, which can overheat components.
- Monitor temperature: After cleaning, use the vacuum for a short period and check for excessive heat. If overheating persists, replace the battery pack first. If the issue remains, the control PCB may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Tristar Lithium Battery Pack
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