SEM oilfree
II/11
GB
2.9 Spare parts service
Visit our website www.schneider-airsys-
tems.com/td/ for the latest version of all ex-
ploded drawings and spare parts lists for our
products. If you have any special questions,
please consult the Schneider Airsystems Ser-
vice centre in your country (addresses in the
service appendix) or your local dealer.
2.10 Warranty conditions
Basis for warranty claims:
complete unit
in original condition/proof of purchase.
D The compressor
starts up briefly
when the switch-on
pressure is reached
or hums, then
switches off auto-
matically.
Mains connection cable longer
than permitted or the cross
section is too small.
X
Check connection cable length
and cable cross-section (see
Chap. 2.4.4)
E
Compressor runs
continuously.
Intake filter badly contami-
nated.
X
Clean or replace intake filter.
Air consumption of compressed
air tools is too high.
X
Check the air consumption of the
tools. Contact the service partner
Leakage at compressor.
X
Locate leak, contact service part-
ner.
Excessive condensate in the
vessel.
X
Drain the condensate (see
Chap. 2.6.3).
Compressed air line leaky:
X
Check compressed air line, plug
leak.
Condensate drain valve is open
or missing.
X
Close or replace.
F
During operation,
compressed air
escapes via the
load-relieving valve.
Load-relieving valve leaky.
X
Clean or replace load-relieving
valve.
G After the switch-off
pressure is reached,
compressed air
escapes via the
load-relieving valve
until switch-on
pressure is reached
Check valve insert leaky or
defective.
X
Clean or replace the check valve
insert (see Chap. 2.6.6).
Check valve is damaged.
X
Replace check valve.
H Compressor
switches on fre-
quently.
Excessive condensate in the
pressure vessel.
X
Drain the condensate (see
Chap. 2.6.3).
Compressor overloaded.
X
See item E
I
Safety valve blows
out.
Vessel pressure is higher than
the set switch-off pressure.
X
Have the pressure switch reset/
replaced by a qualified person.
Safety valve is defective.
X
Replace safety valve or contact
service partner.
J
Compressor over-
heats.
Air supply not sufficient.
X
Ensure sufficient ventilation.
Cooling fins on cylinder (cylin-
der head) contaminated.
X
Clean cooling fins on cylinder
(cylinder head).
Duty cycle too long.
X
Switch off compressor.
Problem
Cause
Remedy
