Chapter IX Troubleshooting Table
Item
(1)
Compressor cannot be started
High current during operation,
(2)
causing overloaded motor
The operating current is lower
than the normal value, and the
(3)
flow of discharged air is obviously
insufficient.
Note: Power shall be switched off while the doors of compressor body are opened for maintenance to check that all air has been released
from the system; maintenance can be performed only when the compressor has been cooled down for 10 minutes.
46
AE5811/AE5812/AE5813
Fault description
Nothing displayed
1. Does the power supply works
normally?
Something displayed but the
compressor unable to be
started
1. Is the phase sequence
normal?
2. Emergency stop button not
released
3. No indication from PLC
4. CT1, CT2 disconnected
5. Fault in pressure sensor and/
or temperature sensor
1. Voltage too low (wire with
small diameter)
2. Discharged air pressure too
much higher than the pressure
set at factory
3. Poor contact in circuit
4. Faulty CT1, CT2
5 5 Air filter, pre-filter and
oil filter clogged (resulting in
internal pressure higher than
discharge pressure)
6. Severe unbalance of three-
phase current
7. Incorrect specifications for
lubricating oil
1. Excessive air consumption,
that is, the user consumes
too much air (the compressor
operates while the pressure is
always below the set value)
2. Air filter, pre-filter and oil
filter clogged
3. Intake valve behaves
improperly
4. The capacity control valve
adjusts the capacity improperly
5. Supply voltage is too high
6. Loose belt
中文
EN
Possible causes
Follow the prompts to do troubleshooting
step by step. If the cause cannot be
determined, please contact us.
1. Increase the wire diameter and shorten
the distance between the compressor body
and power supply
2. Check whether the values from the
pressure gauge and pressure switches are
above the specified values
3. Repair the circuit
4. Replace the air filter, pre-filter and oil
filter according to the indication about them
5. Please contact the service department of
our company.
6. Find out what causes low supply voltage
and unbalance of three-phase current
7. Use the lubricating oil specified by our
company
1. The user considers whether the increase
of air consumption is much more than
the displacement of compressor. Where
applicable, the user may purchase another
air compressor to connect the two
compressors in parallel to discharge air.
2. Clean or replace the filters
3. Disassemble to clean off internal oil or
inhaled fine particles
4. Please contact the service department of
our company.
5. Please contact the administration of
power supply to decrease the AC voltage
to the user transformer to decrease the
supply voltage.
6. Adjusting belt
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Troubleshooting method