Labconco Protector Pass-Through Laboratory Fume Hoods 1136 Series - Manuel (Page 40)

Chapter 8: Troubleshooting
Product Service 1-800-522-7658 36
Original instructions
PROBLEM CAUSE CORRECTIVE ACTION
Fume hood blower
operates but lights
will not operate Lamp wiring is
disconnected. Inspect lamp wiring.
Defective lamp
ballast. Replace lamp ballast.
Contaminants
outside of fume
hood Improper user
techniques for the
fume hood.
See “Certifying the Hood” Chapter 3 and
“Safety Precautions” Chapter 4 sections
in the manual. (Ref. Appendix E)
Restriction of the
baffle air slots or –
blockage of the
exhaust outlet. Remove baffles to ensure that all air
slots, and the exhaust outlet are
unobstructed.
External factors are
disrupting the fume
hood airflow patterns
or acting as a source
of contamination. See “Location Requirements” Chapter 2,
“Certifying the Hood” Chapter 3, and
“Safety Precautions” Chapter 4 sections
of this manual. (Ref. Appendix E)
Fume hood has
improper face
velocity. Have fume hood re-certified and check
remote blower exhaust system. Hood
should have average face velocity of 60-
100 fpm.
Vertical sash no
longer operates
smoothly Cable is frayed or
plastic protection is
damaged. Inspect cable and replace cable if worn or
damaged immediately; otherwise injury
could result.
Pulley bearing is
damaged. Replace pulley, bearing or add grease.
Cable has slipped off
the pulleys. Re-install, cable must be replaced
immediately if damaged.
Weight has broken
pulleys. Replace pulley(s).
Vertical sash frame is
distorted. Place horizontal glass symmetrically and
pull sash down to air foil. Straighten
damaged frame.