48
WP33L_BA_K1_12_en_08.fm
Pressure exceeds set
pressure (8 bar)
2
nd
stage valve malfunction. Check 2
nd
stage valve, replace if nec-
essary.
Gasket between inlet and out-
let at the 2
nd
stage is faulty.
Replace gasket.
Pressure below set
pressure (8 bar)
Safety valve is faulty. Replace the safety valve.
2
nd
stage safety valve
blows:
Pressure exceeds set
pressure
(final pressure + 5%)
Valve in the air line to the com-
pressed air storage closed.
Open the valve.
Pressure switch set too high. Reduce set pressure.
Pressure below set
pressure
(final pressure + 5%)
Safety valve set too low or
faulty.
Replace the safety valve.
Too much pressure loss in the
air line to the compressed air
receiver.
Correct pressure losses.
Pressure gauge of of 2
nd
stage indicates too low
pressure.
Valve of 1
st
stage leaky. Check 1
st
stage valve, replace if neces-
sary.
Air intake filter blocked. Clean or replace air intake filter cart-
ridge.
No or, too low pressure indi-
cated at 2
nd
stage stage
pressure gauge.
No power at solenoid drain
valve.
Check solenoid valve power supply.
Solenoid drain valve faulty. Check solenoid valve, replace if neces-
sary.
Air escaping from com-
pressed air lines.
Connection gaskets or seals
leaking.
Replace faulty gasket or seal.
Cutting rings leaky. Turn compressor off. Wait until all parts
are relieved of pressure, check pres-
sure gauges. Then tighten connec-
tions.
Air escaping from fuse of
the final separator.
Outlet temperature of com-
pressed air too high; insuffici-
ent cooling by faulty fan.
Check fan, replace if necessary.
Check fuse, replace if necessary.
Blocked or dirty cooler;
insufficient ventilation.
Clean the cooler.
Check the room ventilation.
Replace the fuse.
Operation with compressor
control:
Solenoid drain valve does
not close.
No supply voltage. Check fuses, replace blown fuses.
Solenoid faulty. Replace solenoid.
Foreign matter in solenoid
valve.
Clean solenoid valve.
Fault Probable cause Remedy
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