BYD
Overheating Connector / High Contact Resistance
Charger or cable becomes unusually hot to the touch during normal charging, but no error code is shown.
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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
Worn or contaminated pins in Type 2 connector, Loose terminal screws in BYD charger output block, Undersized supply cable for configured current, Damaged or oxidized vehicle inlet contacts
How to Fix / Troubleshooting
Safety first: If the connector is too hot to touch comfortably, stop charging and turn off power.
- Inspect for discoloration: Look for browning, melting, or deformation on the plug, socket, and cable.
- Clean contacts: With power off and cable unplugged, gently clean the plug pins with a dry, lint-free cloth. Do not use abrasives or liquids.
- Check current setting: Reduce the maximum current in the BYD settings and see if temperatures remain acceptable.
- Professional terminal tightening: Have an electrician open the charger and re-torque all output and input terminals to BYD specifications.
- Replace overheated parts: Any connector or cable showing signs of heat damage should be replaced immediately.
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Repair Difficulty
Medium
3/5
Required Part
Type 2 Connector Assembly
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