Rev. 1
Page 3-
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E 900
LCD INDICATION Alarm description Effect/Signaling
Possible cause / Check
Proposed solution
TEST FAILED
Vacuum test failed
Pressure change over the
limit of 0,02 bar.
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; never just after an alarm occurring .
Clean carefully the gasket and the parabola’s board; try a new
Vacuum test.
Leakage from the door gasket.
Replace the gasket - see card Gr6-1
Find the valve and clean it.
Leakage from a valve.
Replace the valve causing the leakage - see cards
Gr2
The pipe of the pressure transducer is
loosen.
Disconnect and connect again the 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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