User Manual

Page 19 of 53 Pages
Low Temp. Message is displayed, fail indicator lights and cycle is
aborted, if the temperature drops 2.5ºC (4.5°F) below the
required sterilization temperature.
Possible causes:
♦ Insufficient water in the chamber (see Low water
message)
♦ Sterilization time has been set for to long a period
♦ A bad temperature sensor
High Temp. Message is displayed, fail indicator lights and program is
aborted if one of the following occurs:
♦ The temperature rises to 3°C (5°F) above the required
sterilization temperature during the sterilization stage.
♦ This message appears during the HEAT stage, if the
temperature sensor is damaged.
Possible causes:
♦ A damaged solid state relay
♦ A damaged heating element
♦ A damaged temperature sensor
Low Water Message is displayed if during the Water Inlet stage
insufficient water enters the chamber. In units with water
pumps, the pump will try three times to fill the chamber
with water if unsuccessful the cycle is aborted and the
message LOW WATER is displayed.
Message is displayed if during a normal heat up stage the
system determines that there is insufficient water in the
chamber to complete the cycle. This determination is made
by the combined input of two sensors, the Water Electrode
and the Safety Thermostat. Also if a power failure occurs
during the heat or sterilization stage after the power returns
the system will check the Water Electrode to see if there is
sufficient water in the chamber in order to resume the cycle.
If not the cycle will be aborted, the message LOW WATER
will be displayed, and the Cycle Fail indicator will light.
Possible causes:
♦ A dirty or shorted Water Electrode
♦ A clogged water pump or water pump filter
♦ A clogged water line
♦ Unit is improperly leveled
♦ The Air Outlet Valve is stuck closed
♦ A leaky door gasket, door bellows, solenoid valve, safety
valve, or the air jet is allowing steam to escape at a
higher than normal rate.
♦ A power down has occurred and on power up the water
electrode tip is dry