Problems and Solutions
Some of the more common problems are listed in Table
Table 5-1 General Troubleshooting Guide
Problem | Possible Cause | Remedy |
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Engine cranks but will not start | No fuel. | Check that fuel valves are ON. Check fuel level in fuel tank. |
| Low Oil Level | Low Oil Pressure Sutdown activated. Replensih oil to full. |
| Restricted air flow. | Check/replace air filter. |
| No spark. | Check/replace spark plug(s). |
|
| Check that engine switch is in Start position. |
| No engine speed during crank | The magnetic pickup must be correctly adjusted and operating. |
Engine will not crank (electric start) | Dead battery. | Remove battery and trickle charge or replace with new battery. |
|
| Never Jump Start. |
| Emergency Stop LED is ON | Reset controller after an Emergency Stop. |
Engine starts but will not run smoothly | Fuel or ignition problem | Refer to engine manual. |
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Engine overheats | Excessive load | Remove one or more electrical loads. |
| Debris or dirt buildup on engine | Remove debris. Clean engine surfaces to allow cooling. |
No output voltage | Ciruit Breaker tripped or failed. | Reset circuit breaker or replace if required. |
| Internal failure of Alternator | Return to factory for repair. |
Output voltage varies | Irregular speed (fixed speed mode) | Check engine for malfunction or load for fluctuation |
| Fluctuating speed (fixed speed mode) | Stabilize load. The addition of a lamp load (resistance load) may |
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| compensate partially for load changes caused by intermittent motor |
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| operation. Do not overload. |
| Loose terminal or load connections | Verify all connections and terminal tighness. |
Low output voltage | Low engine speed | Verify engine RPM. |
| Excessive load | Check engine for malfunction or system for overload. Reduce load. |
| High resistance connections - | Verify all connections and terminal tighness. |
| connections will be warm or hot |
|
| Internal failure of Alternator | Return to factory for repair. |
| Low power factor | Reduce inductive (motor) load. Some AC motors use about the |
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| same current regardless of load. Do not use motors of greater |
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| horsepower rating than is necessary to move the mechanical load. |
High output voltage | Excessive speed (fixed speed mode) | Check engine for malfunction. Verify engine RPM. |
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Electrical shock when frame is touched | Static charge. | Ground generator frame at local reference ground (see Section 3). |
| Grounded armature or field coil. | Return to factory for repair |
Mechanical noise | Internal failure of Alternator | Return to factory for repair |
| Loose or misaligned coupling | Tighten; align coupling and alternator shaft to engine shaft. |
MN2408 |