Page 73 of 101 pages
Symptoms
Possible causes check-
ups and tests
Corrections
6. Temperature rises
above the preset
sterilization value.
6.1 Steam pressure too high.
6.1
Check and set
correctly the
pressure switch of
the generator and
the pressure
reducer.
6.2
Steam valve leaks.
6.2
Fix or replace the
steam valve.
6.3
Control system trouble. 6.3
Replace
control
boards.
7. Fast or slow exhaust
phases do not function;
chamber pressure
remains high or exhaust
takes too long.
7.1 The fast or slow exhaust
valves stuck or damaged.
7.1 Repair or replace
damaged valve.
7.2
Steam valve leaks.
7.2
Repair or replace
steam valve.
7.3
Control system trouble. 7.3
Replace
control
boards.
8. Drying stage does not
work.
8.1
Trouble with the vacuum
system.
8.1
See par. 2 and 4.
8.2
Steam valve leaks.
8.2
Repair or replace
steam valve.
8.3
Control system trouble. 8.3
Replace
control
boards.
9. The air inlet does not
work.
9.1 Air inlet valve clogged or
damaged.
9.1
Repair or replace air
valve.
9.2
Air filter clogged.
9.2 Replace air filter.
10. Unsatisfactory
results of sterilization
process.
10.1 Incomplete removal of air
pockets.
10.1 See trouble related
to vacuum system
par. 2 and 4.
10.2
Sterilization
conditions
improper temperature or
pressure too low,
sterilization time too short.
10.2 Set correctly the
temp. and time
according to the sort
and quantity of
material.
10.3 Incorrect loading of
autoclave, air trapped in the
load.
10.3 See par. on
‘Preparation before
Sterilization’.
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