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Sterilizer Manufacturer:
Midmark
Model of Sterilizer:
M7
Problem Title:
Midmark M7- lots of steam reentering reservoir
Problem Description:
how do you know if the bellows is working properly. I noticed a lot of steam coming from the bellows return pipe into the reservoir and lack of pressure. Just changed door gasket and heat element (b/c warped).
Reasons
1. In your question, you already answer how to find out that the bellow does not work properly.

Usually when the sterilizer heats up to sterilization temperature 270-273F, there IS a very slow steam coming out. The chamber can built the pressure and temperature.

NOTE: please make sure it is not the fill/vent valve leaking to cause the No Pressure building problem.

Solutions

1. The bellow needs to replace.
2. The bellow needs to replace.

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