Bosch
Non-Display Model Fault Indication (Generic Protection Trip)
Bosch EV charger’s status LEDs are flashing in an unusual pattern, but no explicit error code is shown; charging is disabled.
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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
Ground fault, Overtemperature, Pilot error, Internal self-test failure depending on LED pattern
How to Fix / Troubleshooting
Safety first: Treat any persistent fault indication as a potential safety issue.
- Consult manual: Refer to the Bosch charger’s installation and user manual for the specific LED pattern meanings. Different patterns indicate different faults.
- Power reset: Turn OFF the breaker for 5 minutes, then ON. Observe the LED sequence at startup and when plugging in the vehicle.
- Basic checks: Ensure the cable and handle are undamaged, the unit is not overheated, and there is no visible moisture.
- Record pattern: Take a video of the LED pattern and provide it to Bosch support or a technician for accurate diagnosis.
- Service if unresolved: If the pattern indicates an internal fault or persists without clear cause, internal components such as the main PCB or sensors may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board / Sensors
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