Door Does Not Open After Vent Cycle

This Troubleshooting Guide is applicable for the following Midmark Autoclave Model Numbers: M9-001 thru -019, M9D-001 thru -019, M11-001 thru -019, M11D-001 thru -019

Notice Red Led Display


If Your Midmark has a Red LED Display as shown above, then this is the right guide for you

Door Does Not Open After Vent Cycle
M9 & M11 Autoclaves Only


Display/Symptom Cause What to Check Solution
Pulse Solenoid Energizes, But Door Does Not Open
  1. Latch Lever Binding
  2. Door Lath Binding
  3. Tray Rack Not Pushed In All The Way Into Chamber, Causing Interference With Door
  4. Pressure Zero Potentiometer Out of Calibration
  1. Operate Latch Lever By Hand To Check For Resistance.
  2. Operate Door Latch By Chand To Check For Resistance
  3. Check To See If Tray Rack Is Installed Properly So That It Does Not Interfere With Door
  1. Clean / Lubricate Latch Lever
  2. Clean / Lubricate Door Latch
  3. Install Tray Rack Properly So That It Does Not Interfere With Door
  4. Adjust Pressure Zero Potentiometer

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