V-301Series Operating Instructions 3.02E
33
Problems
Check
Solutions
Vacuum is weak.
Vacuum nozzle and/or piping is
clogged.
Clean nozzle and tube. See “10-7 Clean or
replace the nozzle coupler” and “10-8 How
to remove piping (hose)”.
Filter cartridge is clogged.
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Pouch is wrinkled and air is leaking
in.
Pull both sides of the pouch tight, make
sure the nozzle tip is as close to the product
as possible during air removal. (Ref. “8-7
Place a pouch to the sealing area”)
Sheet valve of pump is damaged.
Replace vacuum pump sheet valve or send
unit for repair.
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a monkey wrench.
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Tighten screw with screwdriver.
The pouch is not set correctly. (Nozzle
is not inserted in the pouch.)
Turn off he power switch and start again.
Pump is running but there is no
vacuum.
Piping or the elbow between the
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Clean nozzle and tube. See “10-6 Clean
and replace the nozzle”.
Vacuum pump does not operate.
Micro switch for pump, vacuum button, or
timer board may be damaged.
※
Consult with
Van der Stahl Scientific
Nozzle does not come forward
or return to the initial position by
pressing the nozzle IN/OUT button.
The photo interrupters for sensing the lever
opening, nozzle IN/OUT button, or nozzle
motor may be damaged.
※
Consult with
Van der Stahl Scientific
Two warning beeps continue until the
power switch is turned off.
Micro-switch located front or rear the nozzle
may be damaged.
※
Consult with
Van der Stahl Scientific
Items marked with the
※
mark in the “Solutions” column refer to the fact that these
problems should be addressed by an electrician. If there are any problems, please
FRQWDFW
Van der Stahl Scientific.
Problems related to vacuuming
