Schumacher
Intermittent Overtemperature or Ground Fault Trip Without Displayed Code
Charger starts charging but stops after a few minutes without any error code; user must unplug and replug to restart.
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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
Marginal internal temperature sensor, Weak GFCI/CCID module, Loose internal connections causing heat, Overloaded circuit causing voltage sag
How to Fix / Troubleshooting
Safety first: If you smell burning or feel excessive heat on the charger housing or cable, stop using the charger and turn OFF the breaker.
- Monitor temperature: During a charge, periodically feel the charger housing and cable. Warm is normal; hot to the touch is not. Improve ventilation around the unit if it is in a confined space.
- Check circuit loading: Ensure the Schumacher charger is on a dedicated circuit and that no other large loads are on the same breaker.
- Inspect internal connections (qualified only): With power OFF, open the unit and check that all high-current connections are tight and show no signs of discoloration.
- If behavior persists: The GFCI/CCID module or temperature sensing circuit may be intermittently tripping. Professional testing and replacement of the affected module or control board are recommended.
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Repair Difficulty
Hard
4/5
Required Part
Internal GFCI/CCID Module
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