5
Troubleshooting
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Immediately unplug compressor from
its electrical outlet. Do not operate
compressor until a qualified service
technician can replace pressure
switch.
Replace safety valve
Close drain valve
Replace safety valve
Have a qualified service technician
replace pressure controller
Make sure compressor is plugged into
a working 120V, grounded, electrical
outlet
Replace Fuse
Solution
Defective pressure switch
Pressure switch will not
turn off compressor at 100
PSI
Defective safety valve
Safety valve releasing
Drain valve not fully closed
Air leak in safety valve
Defective pressure controller
Low pressure
Loose Electrical Connections
Blown Fuse
Compressor will not start
Possible Cause
Problem
