52411Vacuumoven0.9_1.9_ver_1.0 as version
Vacuum gauge needle
does not move, door can
open easily
Ensure vacuum valve, purge
valve, and release dial are in
appropriate position
Check door seal
Remove and clean door gasket
with warm water to remove
potential dust or debris
Cannot initiate vacuum
(continued)
Vacuum gauge needle
does not move, door can
open easily
The door is not closed
well
The door does not create
a complete seal between
gasket and glass
Loosen nut 3-5
turns counterclockwise.
Tighten door pin 1 full turn
clockwise.
Using a wrench to maintain
upright position of door pin,
tighten nut clockwise with 2
nd
wrench, locking door pin.
Repeat steps until door handle
firmly latches against pin.
Cannot pull full vacuum
Vacuum gauge cannot
reach desired pressure
Check elevation
Maximum vacuum level is
limited by operating elevation
