Oilless Compressors
troubleshooting Chart (Continued)
Symptom
Compressor runs continuously and safety
valve opens as pressure rises
Excessive starting and stopping
notes
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Possible Cause(s)
1. Defective pressure switch
2. Defective safety valve
1. Excessive condensation in tank
2. Loose connections (fittings, tubing, etc.)
6
Corrective action
1. Replace pressure switch
2. Replace safety valve with genuine
replacement part
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.