Troubleshooting Guide
| Possible Reason | Pressure | Vacuum | Excessive Noise | Overheating | Won't Start | ||
| Low | High | Low | High | ||||
| Dirty filter | X | X | X | X | |||
| Dirty muffler | X | X | X | X | |||
| Dirty valves | X | X | X | X | X | ||
| Bent valves | X | X | X | ||||
| Low voltage | X | X | X | X | X | ||
| Wrong voltage | X | X | |||||
| Regulators set too high | X | X | X | ||||
| Regulators set too low | X | X | |||||
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