E10
Aksa
Overcurrent Protection Trip
Generator shuts down; controller displays E10 Overcurrent / Overload.
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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
Load exceeds generator rating, Short circuit on load side, Faulty circuit breaker, Incorrect CT wiring to controller
How to Fix / Troubleshooting
Safety first: Open the generator output breaker and isolate from the load before troubleshooting.
- Check load level: Review recent loads connected to the Aksa standby generator. Large motors or heaters may exceed kW/kVA rating. Reduce or stagger loads.
- Inspect for short circuits: Check downstream panels and cables for tripped breakers, burnt smell, or visible damage. Repair any shorted circuits before reconnecting.
- Test generator breaker: Operate the generator main breaker several times. If it trips at low load, have it tested or replaced.
- Verify CT wiring: In the control panel, confirm current transformer (CT) wiring matches the controller diagram and that CT ratios are correctly programmed.
- Gradual load test: After clearing faults, reconnect loads gradually while monitoring current on each phase via the Aksa controller.
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Repair Difficulty
Medium
3/5
Required Part
Generator Main Circuit Breaker
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