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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
Compressor unit
starts, but stops
again after only
a few
revolutions.
Non-return valve leaking
(compressor unit is on load during
start).
Disconnect from the mains supply
and empty air receiver. Clean
or replace
Non-return valve blocked,
possibly frozen up.
Thaw non-return valve out
(Unit must be installed in frost-
free place).
Solenoid valve leaking or
defective (only applies to 10 HP
machines and above).
Contact Clarke Service
Fuses keep
blowing.
Inadequate size fuse installed. Replace with reference to
chart See page 6.
Fault in motor. Contact Clarke Service
Unusual noise
from
compressor
Bolts loose. Tighten Bolts.
V-Belt flywheel or cooling coil
touching belt guard
Find place of contact and
remedy fault.
Flywheel loose. Tighten flywheel.
Unit installed on an unsuitable
base.
Move unit to a more solid
base
Bearings, piston rings or cylinder
worn.
Contact Clarke Service
Valve broken. Contact Clarke Service
Bearings of electric motor worn Contact Clarke Service
Compressor’s oil
consumption
rising.
Too much oil in compressor. Check oil level 2 or 3 minutes
after stopping.
Leaks around crank case. Contact Clarke Service
Working temperature of
compressor too high because of
insufficient cooling.
Increase ventilation to air
compressor.
Unit too small in proportion to air
consumption.
Connect supplementary.
Semi-automatic unit Load too
small.
Convert to fully automatic
operation.
Cylinder worn Contact Clarke Service
Intake air filter blocked. Clean / Change air filter.
SYMPTOM PROBABLE CAUSE REMEDY
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