Smith-Root GPP 2.5 - Basic Troubleshooting

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USER’S MANUAL
www.smith-root.com
BASIC TROUBLESHOOTING
PROBLEM SOLUTIONS
Generator does not generate electricity 1. Check output voltage of generator at 12 VAC terminals
with lamp or meter.
2. Be sure the load is not too large; reduce if necessary.
3. Check for short circuit in line using an ohmmeter.
4. Test diodes with ohmmeter to see if they are shorted or open.
5. Check stator winding or eld winding for shorts.
6. Flash generator.
Generator voltage too high* 1. Refer to engine manufacturer’s manual,
* Check after generator is sufciently warmed up:
2. Check engine speed with tachometer.
15 to 20 minutes.
Generator voltage too low* 1. Refer to engine manufacturer’s manual,
2. Check engine speed with tachometer.
3. Be sure the load is not too large; reduce if necessary.
4. Check for short circuit in line using an ohmmeter.
5. Test diodes with ohmmeter to see if they are shorted or open.
6. Check stator winding and eld winding for shorts,
between windings or to the generator frame.
Generator overheats 1. Check output voltage of generator
.
2. Be sure the load is not too large; reduce if necessary.
3. Check for short circuit in line using an ohmmeter.
4. Be sure generator is located properly.
Generator brushes sparking 1. Check stator winding or eld winding for shorts.
WARNING: Always remove the engine ignition cable before checking or repairing
the power supply to prevent it from accidentally starting.
BASIC TROUBLESHOOTING