E23
Aksa Underfrequency Protection

Generator shuts down; controller displays E23 Frequency Low.

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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

Engine unable to maintain speed under load, Excessive load, Fuel restriction, Incorrect governor settings

How to Fix / Troubleshooting

Safety first: Disconnect non‑essential loads before restarting.

  • Measure frequency under load: Confirm that frequency drops significantly when load is applied.
  • Reduce load: Shed non‑critical loads to keep total demand within the Aksa generator rating.
  • Check fuel system: Replace clogged filters and ensure fuel supply is unrestricted.
  • Adjust governor: Fine‑tune governor gain and droop settings per engine manual (qualified personnel only).
  • Engine health check: If frequency remains low at modest load, have a technician inspect injectors and compression.
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Repair Difficulty

Hard 4/5

Required Part

Fuel Injection System
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