Product Manual B
Table Of Contents
- Table of Contents
- 1. IMPORTANT SAFETY INSTRUCTIONS
- 1.1 Warning, Caution, and Note Styles Used in This Manual
- 1.2 General Information
- 1.3 Generator Set Safety Code
- 1.4 Moving Parts Can Cause Severe Personal Injury or Death
- 1.5 Electrical Shocks and Arc Flashes Can Cause Severe Personal Injury or Death
- 1.6 Fuel and Fumes Are Flammable
- 1.7 Batteries Can Explode
- 1.8 Exhaust Gases Are Deadly
- 1.9 The Hazards of Carbon Monoxide
- 1.10 Earth Ground Connection
- 2. Introduction
- 3. Control System
- 4. Operation
- 5. Maintenance
- 6. Troubleshooting
6. Troubleshooting7-2018
95A045R242 (Issue 12) Copyright © 2018 Cummins Inc.
b. If a leak is present, contact your Cummins service representative.
Code 421 - Engine Oil Temperature High (Warning)
Logic: The control has detected the engine oil temperature has exceeded the
warning threshold.
Possible Cause:
1. High ambient temperature
2. Blocked enclosure air intake
3. Coolant level below specification
Diagnosis and Repair:
1. High ambient temperature
a. Reduce loads or recirculation of discharge air to generator in elevated
ambient.
2. Blocked enclosure air intake
a. Inspect for dirt, debris, or obstructions.
b. Remove blockage or snow/ice buildup as applicable.
3. Coolant level is below specification
a. Check coolant level.
b. Add coolant as necessary.
Code 441 - Battery Voltage Low (Warning)
Logic: Battery voltage is low.
Possible Causes:
1. Loose or damaged battery cable connections
2. Battery charger not connected (if equipped)
3. Battery not completely charged
4. Battery is old and does not maintain a charge
Diagnosis and Repair:
1. Loose or damaged battery cable connections
• Inspect the battery cable connections for corrosion and loose connections.
Adjust or repair if needed.
2. Battery charger not connected (if equipped)
a. Make sure that the battery charger is connected to the AC power supply.
b. Make sure that the battery charger is connected correctly to the battery.
3. Battery not completely charged
• Using a voltmeter or multimeter, determine if the voltage is below 11 V. If
so, recharge the battery.