Sterilizer Has No Power

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

Autoclave Has No Power


Display/Symptom Cause What to Check Solution
Unit displays temperature & pressure, but does not show LED status lights

No response when ON/STANDBY is pushed (no lamps illuminate)
  1. Sterilizer is not plugged in
  2. Fuse blown on Control PC board
  3. Thermostat activated
  1. Check that power cord is plugged in to sterilizer and outlet
  2. Perform continuity check on control PC board fuses
  3. Check for voltage at input to control PC board from thermostat
  1. Plug in power cord to sterilizer or outlet
  2. Replace fuses
  3. Wait for sterilizer to cool. Re-check voltage. If none, replace thermostat

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