Labconco Total Exhaust Biological Safety Cabinets 34368 Series - Manual (Page 59)

Chapter 7: Troubleshooting
Product Service 1-800-522-7658 53
Original instructions
Contamination of
work in the cabinet Improper technique
or procedure for the
biosafety cabinet See “Use of the cabinet” section in the
manual.
Restriction of the
return air slots or
grille – blockage of
the exhaust outlet Ensure that all return air slots, grilles
and the exhaust outlet are unobstructed.
External factors are
disrupting the cabinet
airflow patterns or
acting as a source of
contamination See “Working in the Biosafety
Cabinet” section of this manual.
Cabinet is out of
adjustment/HEPA
filter(s) are defective Have cabinet recertified.