ERROR CODE C574: STERILIZE MODE

This Troubleshooting Guide is applicable for the following Midmark Autoclave Model Numbers: M9-020 thru -022, M9D-020 thru -022, M11-020 thru -022, M11D-020 thru -022
 

Notice Green LCD Display

 


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

 




Midmark M9 & M11 Error C574: STERILIZE MODE


Display/Symptom Cause What to Check Solution
C574: STERILIZE MODE
STEAM TEMP OVERLIM
ITEMS NOT STERILE
UNPLUG / REPLUG UNIT

Steam temperature exceeds 284°F (140°C) during STERILIZE Mode		 Pressure leaking from chamber Check for pressure leaks. Click Here To See "How To Find Pressure Leaks" Repair or replace malfunctioning component
Temperature sensor malfunctioning Be sure there is nothing touching the temperature sensor. (Example: trays, pouches, cassettes, etc) Reposition items so nothing touches the temperature sensor
Check the temperature sensor probe for corrosion or residue. Clean the temperature sensor with Mid-Clean and distilled water. Click Here to get Mid-Clean (Part #MIC143-6907)
Perform Temperature Sensor Testing Follow instructions in test procedures
Sterilizer is not Level Check surface where autoclave is located to make sure it is level Level with Front Leveling Feet, or move the autoclave to a level surface
Pressure sensor tubing to PC board clogged or restricted Check for blockage in the pressure sensor tubing between the PC board and the chamber. In addition, inspect the filter located inside the chamber to be sure it is not clogged Clear any restriction that could prevent chamber pressure from reaching the pressure sensor on PC board
PC board malfunctioning Perform Pressure Transducer Voltage Test Follow the instructions in test procedures

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