Error Code E004

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

Midmark M9 & M11 Error Code E004


Display/Symptom Cause What to Check Solution
E004
  1. Door Latch not closed
  2. Door Switch connection loose
  3. Door Switch Malfunctioning
  1. Check if Door Latch is engaging switch
  2. Check Door Switch connection
  3. Perform Continuity Check on Door Switch (Normally Open)
  1. Adjust Door Latch....Clean & Lubricate Door Latch and Pins
  2. Tighten / Replace Loose Connections
  3. Replace Door Switch

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