Atlas Copco GA 30+ Instruction Book page 165

Instruction book
Condition
Compressor starts running, but
does not load after a delay time
Compressor does not unload,
safety valve blows
Condensate is not discharged
from condensate separator during
loading
Compressor air output or pressure
below normal
Excessive oil consumption; oil
carry-over through discharge line
Safety valve blows after loading
2920 7180 30
Fault
Too high temperature in oil
separator vessel or temperature
switch (TSHH1) defective
Phase sequence relay (K25) open
Wiring interrupted
Solenoid valve out of order
Inlet valve stuck in closed position
Leak in control air tubes
Minimum pressure valve leaking
(when air net is depressurised)
Solenoid valve out of order
Inlet valve does not close
Discharge tube clogged
Air consumption exceeds air
delivery of compressor
Choked air filter element
Solenoid valve malfunctioning
Leak in control air tubes
Oil separator element clogged
Air leakage
Safety valve leaking
Inlet valve does not fully open
Compressor element out of order
Incorrect oil causing foam
Oil level too high
Oil separator defective
Inlet valve malfunctioning
Remedy
Find cause and remedy. Replace
if necessary.
Find cause and remedy. Replace
if necessary.
Find cause and remedy. Replace
if necessary.
Replace valve
Have valve checked
Replace leaking tubes
Have valve checked
Replace valve
Have valve checked
Check and correct as necessary
Check the connected equipment.
Replace filter element
Replace valve
Replace leaking tubes
Have element replaced
Have leaks repaired.
Replace valve
Have valve checked
Consult your supplier
Change to correct oil
Check for overfilling. Release
pressure and drain oil to correct
level.
Replace oil separator element
Have valve checked
163