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Operating Instructions and Parts Manual
Troubleshooting Guide
Symptom | cause | solution | ||||
Compressor will not run | 1. | No electrical power | 1. | Plugged in? Switch on? Check fuse/breaker | ||
| 2. | Breaker open | 2. | Reset, determine cause of problem | ||
| 3. | Pressure switch bad | 3. | Replace | ||
| 4. | Motor over worked | 4. | Turn off, let cool, turn on. | ||
| 5. | Tank pressure above | 5. | Bleed tank pressure down to | ||
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Fuses blow/circuit breaker | 1. | Incorrect size fuse, circuit overloaded | 1. | Check for proper fuse, use | ||
trips repeatedly |
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| Disconnect other electrical appliances from circuit | |
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| or operate compressor on its own branch circuit | |
| 2. | Worn check valve | 2. | Replace | ||
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| Do not disassemble check valve with |
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| air in tank; bleed tank |
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Tank pressure drops when | 1. Loose connections (fittings, tubing, |
compressor shuts off | etc.) |
1.Check all connections with soap and water solution. Tighten; or remove and apply pipe dope or pipe tape to the threads, then reassemble.
| 2. | Open tank drain | 2. | Close drain |
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Air output lower than | 1. | Air leaks in piping (on machine or in | 1. | Check all connections with soap and water |
normal/low discharge |
| outside system) |
| solution. Tighten; or remove and apply pipe dope |
pressure |
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| or pipe tape to the threads, then reassemble. |
| 2. | Piston ring worn | 2. | Replace |
| 3. | Excessive air usage | 3. | Decrease air usage; compressor not large enough |
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| for air requirement |
| 4. | Open tank drain | 4. | Close tank drain |
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Excessive moisture in | 1. | Excessive water in tank | 1. | Drain tank |
discharge air |
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| 2. | High humidity | 2. | Move to area of less humidity; use air line filter |
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Compressor runs | 1. | Defective pressure switch | 1. | Replace switch |
continuously |
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| 2. | Excessive air usage | 2. | Decrease air usage; compressor not large enough |
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| for air requirement |
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Motor runs but no air output | Belt worn | Replace belt | ||
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