Low Water Light - Water Continuously Enters Chamber

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

Low Water Light
Water Continuously Fills Chamber


Display/Symptom Cause What to Check Solution
Low Water Light

(comes on after approx. 5 minutes)
  1. Water Level Sensor Dirty or Malfunctioning
  2. Temperature Sensor malfunctioning
  1. Clean Water Level Sensor; then perform Continuity Check
  2. Disconnect Temperature Sensor from PC board; then check for proper operation
  1. Replace Water Level Sensor
  2. Replace Temperature Sensor

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