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Oil-Free Scroll Compressor 4kW ~ 15kW
8.3 Fault table
Fault description
Causes
Remedy
Personnel
No picture in
controller
operation panel
Blocked pipeline
Check or change pipeline
Qualified
electrician
Check valve malfunction Check or change check valve
Qualified
electrician
Abnormal
pressure
sensor line
Check or change pressure sensor line
Manufacturer
No action after
pressing down
start
Abnormal
control
cabinet line
Check or change control cabinet line
Qualified
electrician
Excessively high air
inflow or ambient tem-
perature
Improve ventilation of air compressor
room
Qualified
electrician
Abnormal machine body Check or change machine body
Qualified
electrician
Voltage below level
Adjust main power
Manufacturer
Pipeline leakage
Check air compressor and system
pipeline for leakage
Manufacturer
Excessively high
air discharge
Abnormal check valve
Check or change check valve
Trained staff
Abnormal
pressure
value set
Check pressure value set for security
valve
Manufacturer
Change spare parts
Replace after maintenance
Manufacturer
Abnormal machine body Check or change machine body
Manufacturer
Abnormal air
compressor
discharge signa
Air
compressor
reversion
Check or change line
Manufacturer
Pipeline blockage
Check or change pipeline
Manufacturer
Excessively high
air compressor
pressure
Abnormal check valve
Check or change check valve
Manufacturer
Blocked air filter
Check or change air filter
Manufacturer
Abnormal air
compressor
pressure signal
Abnormal
pressure
value set
Check controller pressure value set
Manufacturer
Air
compressor
reversion
Check or change line
Manufacturer
Motor overload
Abnormal machine body Check or change machine body
Trained staff
Abnormal belt
Check or change belt
Manufacturer
Abnormal motor
Check or change motor
Qualified
electrician