Labconco PuriCare Vertical Flow Stations 3830020 - Manual (Page 47)

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Chapter 8: Troubleshooting
PROBLEM
CAUSE CORRECTIVE ACTION
Slight increase in
pressure reading HEPA filter loading The pressure reading will steadily
increase as the unit is used.
Prefilter loading Check the prefilters for obstruction(s).
Clean if necessary.
Blockage or
restriction under the
work surface
Ensure that the plenum beneath the
work surface is unobstructed.
Blockage of the
exhaust outlet Ensure that the exhaust outlet is not
blocked or restricted.
Contamination of
work in the station Improper technique
or procedure for the
Vertical Flow Station See “Use of the Vertical Flow Station”
section in the manual.
Restriction of the
grille – blockage of
the exhaust outlet Ensure that all return air slots, grilles
and the exhaust outlet are unobstructed.
External factors are
disrupting the
station’s airflow
patterns or acting as a
source of
contamination See “Installation” section of this
manual.
Station is out of
adjustment/HEPA
filter(s) are defective Have station recertified.