TROUBLE SHOOTING CHART
IMPORTANT!
1. Any remedial work that may be required must be carried out by aqualified
electrician/engineer.
2. Switch off current before removing any parts from the compressor.
3. Empty Air Receiver of Air before dismantling any part of thecompressor unit’s
pressure system.
4. If your compressor develops a fault do not use until the fault hasbeen rectified.
SYMPTOM
PROBABLE CAUSES
REMEDY
Compressor will not
Fault in electrical
Let an electrician check
start automatically.
installation.
electrical installation.
a) current supply failure.
b) voltage drop.
c) motor starter faulty.
d) motor incorrectly
connected or faulty.
e) starter overload has
Reset by depressing
tripped out.
button.
f) Pressure switch
Have pressure switch
defective.
changed by anelectrician.
g) Fuse blown.
Check fuse rating - replace.
Fuses keep blowing. Inadequate size fuse
Replace with reference to
installed.
chart on page 2.
Fault in motor.
Consult an electrician.
Compressor unit
Non-return valve leaking
Switch off current and
starts, but stops
(compressor unit is on load
empty air receiver. Clean
again after only a
during start).
or replace non-return valve.
few revolutons.
Non-return valve blocked,
Thaw non-return valve out
possibly frozen up.
(Unit must be installed in
frost-free place).
Solenoid valve leaking or
Let an electrician inspect
defective (only applies to
electrical installation in
10 hp machines and above). accordance with diagram
supplied with starter (10 hp
and above).
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