E07
Mini
Surge Protection Device (SPD) Failure
Charger shows E07; no charging; often after a lightning storm or surge event
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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
Internal SPD module triggered or damaged by surge, Incorrect earthing causing SPD misoperation, Repeated small surges degrading SPD over time
How to Fix / Troubleshooting
Safety: Surges can compromise insulation. Have the installation inspected if E07 appears.
- Visual inspection (technician): With power OFF and cover removed, locate the surge protection device inside the Mini charger (often a small module connected between phases and earth). Check for discoloration, cracking, or indicator flags showing end-of-life.
- Check earthing: Verify that the earth conductor is securely connected to the charger’s earth terminal and that the building earth system is intact.
- Replace SPD module: If the SPD has reached end-of-life, it must be replaced with an identical Mini-approved part. Do not bypass the SPD.
- Power cycle: After SPD replacement and reassembly, restore power and confirm that E07 is cleared.
If E07 remains after SPD replacement, the main control board may also have been damaged by the surge and require replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Mini EV Charger Internal Surge Protection Device
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