A dirty Air Jet is the number one cause of failed spore tests
It is required that the Air Jet, which is located just inside the Water Reservoir, be cleaned once per week, or more often if necessary, to remove any accumulated dirt and debris
Failure to keep the Air Jet Valve clean will result in a malfunctioning of autoclave
Indications of an air ject valve failure are demonstrated by indicator strips that do not turn and failed spore tests