STERIS - Amsco 400 Small
by STERIS

STERIS Amsco 400 Small Forums

Updated  Dec 22 2025
1 Reply

On startup this 1 unit goes into depressurization, 20min. But stops around the 10 min mark. Customer says it sits there all day and they cant use it. 

Is that a normal part of the cycle on the 400s? Chamber is empty, I can open the door and it makes no difference. 

When the countdown stops, could it be a calibration issue? 

What is thia depressurization, is it the sterilizer or the boiler, is it a feature that can be turned off?

RE: STERIS - Amsco 400 Small
Updated  Mar 28 2024
3 Replies

Hi

Need help on Sm Century 400 with door unsealed alarm. Exhaust and steam manifold have been changed twice. CK1/2 and 14 also have been changed. PRV, door pressure switch also change and calibrated. After starting DART test not even 5 minutes after the seal got activated the error shows up door unsealed alarm. Im struggling to get it resolve and run out of option hence reaching out here for help. 

Equipment: Amsco 400 small

RE: STERIS - Amsco 400 Small
5 Replies

Is it air or is it steam leaking & where should I look or rebuild? Unit is only 1.5 yrs old.

RE: STERIS - Amsco 400 Small
4 Replies

Initial issue "Too long to evacuate". Water pressure 35PSI, replaced all components kits , seats, coils, injector, heat exchanger, check valves. verified pressure transducer is working with in specs. Steris is confused can't find the problem. WTF, any ideas?

RE: STERIS - Amsco 400 Small

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Equipment Name: STERIS - Amsco 400 Small
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