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ENGINEERED IN NAIROBI, KENYA
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  5. DSE-E125
DSE

DSE-E125

Generator Under Voltage

⚠️WARNING

The generator output voltage has dropped below the minimum acceptable level. Under voltage can cause connected equipment to malfunction and indicates problems with AVR, excitation, speed control, or overloading.

🔍 Possible Causes

  • •Generator overloaded beyond capacity
  • •AVR failure or degradation
  • •Loose or corroded AVR voltage sensing wires
  • •Engine underspeed affecting voltage
  • •Exciter or main rotor winding fault
  • •Capacitor bank failure (if equipped)

🔧 Troubleshooting Steps

  1. 1Check actual load vs generator rated capacity
  2. 2Verify engine speed is at correct RPM
  3. 3Check AVR voltage sensing connections
  4. 4Adjust AVR voltage potentiometer
  5. 5Check exciter and main stator windings
  6. 6Test alternator with load bank

🛠️ Parts You May Need

Automatic Voltage Regulator (AVR)Voltage Sensing WiresExciter Rotor/StatorMain Stator WindingsBrushes and Slip Rings

Need parts? We stock genuine DSE parts with next-day delivery in Nairobi.Call +254 768 860 665

❓ Frequently Asked Questions

Why is my generator voltage dropping under load?

Voltage drop under load indicates the generator may be overloaded, the AVR is not responding properly, or there is excessive voltage drop in connections. Check load vs capacity first.

How do I adjust the voltage on my generator?

Most AVRs have a voltage adjustment potentiometer. Adjust slowly while monitoring output with a meter. Only adjust with stable load and at correct speed.

Need Expert Help?

Our engineers have fixed 1,000+ DSE generators. Get professional diagnosis now.

WhatsApp EngineerCall +254 768 860 665

Advanced Diagnostics

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Related Fault Codes

DSE-E040Underspeed WarningDSE-E120Generator Over VoltageDSE-E125Generator Under VoltageCOMAP-A040Generator Over Frequency