Must-Stop Fault Codes for Diesel Generator Sets: Protect Your Equipment and Avoid Losses

Diesel generator sets are critical backup power sources for many businesses. However, certain fault codes indicate severe issues that require immediate shutdown to prevent costly damage. In this article, we highlight the key fault codes, emergency shutdown procedures, and preventive measures to safeguard your generator set.

1. Fault Codes That Require Immediate Shutdown

1. Over Speed (超速)

Risk: Engine speed exceeds safe limits, which can damage mechanical components or even cause catastrophic engine failure.
Action: Immediately cut off fuel supply and inspect the governor and sensors for faults.

2. Low Oil Pressure (机油压力过低)

Risk: Insufficient lubrication can lead to cylinder scoring, bearing wear, or engine seizure.
Action: Stop the generator, check oil levels, inspect the oil pump, and ensure filters are not clogged.

3. High Coolant Temperature (水温过高)

Risk: Overheating may warp cylinder heads or melt pistons.
Action: Stop the generator, verify coolant levels, and inspect the radiator, water pump, and cooling fan.

4. Over/Under Voltage (电压异常)

Risk: Unstable voltage can damage sensitive electrical equipment and the generator windings.
Action: Inspect the Automatic Voltage Regulator (AVR) and the excitation system.

5. Short Circuit (短路故障)

Risk: Can cause fire hazards or burn out the generator.
Action: Immediately cut off the output and check all wiring insulation for faults.

2. Emergency Shutdown Steps

1. Press the emergency stop button (prioritize over regular stop).

2. Cut off fuel and electrical supply to prevent further damage.

3. Record the fault code for maintenance reference.

4. Contact professional technicians—do not attempt to repair the generator yourself.

3. Preventive Measures

• Regular Maintenance: Replace engine oil, filters, and inspect key components as per manufacturer recommendations.

• Install Intelligent Monitoring: Real-time alerts allow early detection of potential faults.

• Operator Training: Ensure personnel understand all alarm codes and proper emergency procedures.

Reliable Diesel Generator Sets for Your Business

Don’t risk downtime or damage—invest in a high-quality diesel generator set from our factory! We offer a wide range of generators, including:

• 50kVA – 2500kVA options

• Engines: Cummins, Perkins, Weichai, SDEC, Mitsubishi

• Configurations: Prime power, standby power, silent type, marine generators

Why Choose Us: Direct factory pricing, reliable quality, long-lasting performance, and professional technical support.

Contact us now to get a free quote and secure your backup power solution:
WhatsApp: +86-13205904365 | ✉ Email: sale@hosempower.com