Rev. 1
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E 901
LCD INDICATION Alarm description Effect/Signaling
Possible cause / Check
Proposed solution
TEST FAILED
Vacuum test failed
during the waiting
time.
Pressure rising over the value
-.71 bar.
Too much humidity in the sterilization
chamber.
Dry carefully the chamber , reset the alarm, start a new
Vacuum test. The chamber temperature must be lower than
50°C.
Clean carefully the gasket and parabola’s board , reset the
alarm, start a new Vacuum test. The chamber temperature
must be lower than 50°C
Leakage from the door gasket.
Replace the gasket - see card Gr6-1
Find the valve and clean it; reset the alarm and start a new
Vacuum test..
Leakage from a valve.
Replace the valve causing the problem
- see cards Gr2
Check that the Vacuum test was not
launched with chamber too hot
Advise to carry out the Vacuum test at the beginning of the
working day, with chamber empty and temperature lower than
50°C. Reset the alarm and start a new Vacuum test
Never start the Vacuum test just after an alarm occurring .
Check that the Vacuum test was not
launched just after an alarm occurring .
Advise for the correct execution of the Vacuum test
Check that the transparent pipe of the
pressure transducer is nor loosened.
Disconnect and connect again the transparent pipe.
Leakage from the heat exchanger
Replace the heat exchanger - see card Gr4-3
Sterilizer not used for a long time.
Startup the hydraulic circuit of the steam generator –
see Attachment G.
Perform cycles without load.
Replace the water pump – see card Gr3-1
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