M9/M11 Sterilizer Water Level Sensor Location / Function Test and Repair

M9/M11 Sterilizer Water Level Sensor

During the Fill Mode

5 VDC is supplied to the water level sensor. When the water level in the chamber reaches the sensor disk, a circuit is completed, and current flows back to the PC board.

When the 5 VDC from the water level sensor is detected, the PC board stops the current flow to the fill valve.

Approximate quantities of water to reach water level sensor:

M9 units

650 ml

M11 units

750 ml

During the Heat-Up / Sterilization / Vent / Dry Modes

The water level sensor is not monitored.