If the Water Level Sensor on your Midmark M9 or M11 Autoclaves passed the Water Level Sensor Test and showing it is functioning properly, but the autoclave is still skipping the filling cycle, the next step is to test the Supply Voltage
For this test, you will want the autoclave plugged in, and the right hand side panel removed to give you access to the PC Board
The acceptable reading is between 4.0 & 6.0 VDC