Oilless Compressors
Troubleshooting Chart (Continued)
Symptom | Possible Cause(s) | Corrective Action | ||
Compressor runs | 1. | Excessive air usage, compressor too | 1. | Decrease usage or purchase unit with higher air |
continuously and air |
| small |
| delivery (SCFM) |
output is lower than | 2. | Air leaks in piping (on machine or in | 2. | Replace leaking components or tighten as necessary |
normal/low discharge |
| outside system) |
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pressure | 3. | Broken inlet valves | 3. | Replace pump assembly |
| 4. | Piston ring worn | 4. | Replace piston assembly |
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Excessive moisture in | 1. | Excessive water in tank | 1. | Drain tank, tilt tank to remove moisture |
discharge air | 2. | High humidity | 2. | Move to area of less humidity; use air line filter |
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| NOTE: Water condensation is not caused by |
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| compressor malfunction |
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Compressor runs | 1. | Defective pressure switch | 1. | Replace pressure switch |
continuously and safety | 2. | Defective safety valve | 2. | Replace safety valve with genuine replacement part |
valve opens as pressure |
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rises |
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Excessive starting and | Excessive condensation in tank | Drain more often | ||
stopping (auto start) |
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Notes
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