V-301G Series Operating Instructions Ver. 2.01E
55
Problems related to vacuuming
Problems
Check
Solutions
Vacuum is weak.
Vacuum nozzle is clogged.
Clean the nozzle referring to “10-5 Clean/
replace a nozzle” and “10-7 Clean/replace a
nozzle joint.”
Filter cartridge 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. “8-8 Place a
pouch to the sealing area.”)
Vacuum pump seat valve is
damaged.
Replace vacuum pump seat valve or
contact
Van der Stahl Scientific
for repair.
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monkey wrench.
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loose.
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.
No vacuum, however, pump is
running.
Hose or elbow between nozzle and
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Clean the nozzle referring to “10-5 Clean/
replace a nozzle.”
Pump does not operate.
Micro switch for pump, vacuum button, or
timer board may be damaged.
※
Co
ntact
Van der Stahl Scientific
.
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Replace a gas cylinder.
Is gas pressure and the amount of
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Adjust gas pressure and the amount of
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Nozzle doesn't come forward
or return.
Opening sensor photo interrupters , START/
STOP button, nozzle motor may be damaged.
※
Con
tact
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.
※
Con
tact
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 contact
Van der Stahl Scientific
.
