Troubleshooting Chart - ADENDORFF MAC-AFRIC COMPRE-024 Original Operating Instructions

10

TROUBLESHOOTING CHART

IMPORTANT
I. Any remedial work that may be required must be carried out by a qualified electrician/engineer.
II. Disconnect from the mains supply before removing any parts from the compressor.
III. Empty Air Receiver of air before dismantling any part of the compressor unit's pressure system.
IV. If your compressor develops a fault do not use until the fault has been rectified.
SYMPTOM
Compressor will not start auto-
matically
Compressor unit will not stop
automatically
Bleed valve under pressure
switch blows whilst compres-
sor is not running
Bleed valve under pressure
Compressor unit starts, but
stops again after only a few
revolutions
Unusual noise from compressor
Compressor unit starts and
stops more frequently than
usual
Compressor unit starts when no
air is being used
Electric motor too hot:
Maximum temperature 90°C
PROBABLE CAUSE
Fault in electrical installation
Current supply failure
Voltage drop
Motor starter faulty
Motor incorrectly connected or faulty
Starter overload has tripped out
Pressure switch defective
Pressure switch defective
Non-return valve leaking
Non return valve stuck (NRV) open at junction
at the tank and the pump delivery pipe
Non-return valve leaking (compressor unit is
on load during start).
Non-Return value blocked, possibly frozen up
Solenoid valve leaking or defective (only
applies to certain models - where applicable
- and above)
Bolts loose
V-Belt flywheel or cooling coil touching belt
guard
Flywheel loose
Unit installed on an unsuitable base
Bearings, piston rings or cylinder worn
Valve broken
Bearings of electric motor worn
Large amount of condensation in air receiver
Leaks in control unit or inspection cover
Too little pressure
Leaks in pipework system
Operational voltage too low
Faults in electrical installation
Cooling fins of electric motor blocked by dirt
COPYRIGHT ADENDORFF MACHINERY MART
DIRECT & BELT DRIVEN MANUALS
REMEDY
Let an electrician check the electrical installation
Reset by depressing button
Have pressure switch changed by an electrician
Contact Adendorff Machinery
Replace
Drain tank and remove inspection nut to clean
Non Return valve
Disconnect from the mains supply and empty air
receiver. Clean or replace
Thaw non-return valve out (unit must be installed
in frost-free place)
Contact Adendorff Machinery
Tighten bolts
Find place of contact and remedy fault
Tighten flywheel
Move unit to a more solid base
Contact Adendorff Machinery
Contact Adendorff Machinery
Contact Adendorff Machinery
Drain off condensation at least once a day/week
Locate leaks (by means of soapy water) and
repair
Contact Adendorff Machinery
Locate and repair leaks
Call an electrician
Contact Adendorff Machinery
Clean cooling fins
AIR COMPRESSORS