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Oilless Compressors
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Troubleshooting Chart (Continued)
Symptom Possible Cause(s) Corrective Action
Compressor runs continuously and safety
valve opens as pressure rises
1. Defective pressure switch
2. Defective safety valve
1. Replace pressure switch
2. Replace safety valve with genuine
replacement part
Excessive starting and stopping 1. Excessive condensation in tank
2. Loose connections (fittings, tubing, etc.)
1. Drain more often
2. Check all connections with soap and water
solution. If a leak is detected, tighten.
Or remove fitting and apply pipe tape to
threads and reassemble.
Notes