12
Troubleshooting
Problem
Possible Solutions
Vacuum pump does not work.
Limit switch is not pressed on, close the machine cover and adjust
the limit switch.
Limit switch is broken, replace it.
Contactor is broken, replace it.
Pump motor is broken, replace it.
Vacuum chamber cannot reach the
vacuum degree.
The vacuum pump is worn or damaged.
Loose air pipe joint, broken pip, damaged sealing ring of vacuum
chamber or damaged valve causes the entry of air into vacuum
chamber.
Insufficient oil in vacuum pump.
Vacuum time is not enough.
Cover cannot be opened.
Air release valve is not turned on.
Air remains in bag after processing is
finished.
Wrong position resting on seal bar.
Pressing stick press the bag opening side causes the air cannot be
sucked.
Abnormal sound or tripping when
running, black smoke or oil drop.
Abnormal sound of fan of pump motor, it should be repaired.
Blockage may be seen in air intake and/or pip.
Insufficient oil of vacuum pump or the use of non-standard oil.
Long time running of pump or overheat running under high
temperature.
Faulty vacuum pump motor or valve of vacuum pump or wear and
tear due to usage.
REFERENCE
Item Number Model Number
Description
Manufacturer Model Number
19481
VP-CN-0749
Vacuum Packaging Machine 15.25” x 11” x
3.25” / 387 x 279 x 83mm Chamber Size
DZ260/PD
19482
VP-CN-1066
Vacuum Packaging Machine 19.75”
x 16.25” x 4.5” / 502 x 413 x 114mm
Chamber Size
DZ390/T
