Technical data
21
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.
Power Dn. If a power failure occurred during the running of a cycle,
when power resumes a POWER DN message is displayed
for several seconds; if a printer is installed it will print
POWER DN. In addition, the system automatically attempts
to complete the STERILIZATION stage if the following
parameters are met:
a. If the temperature drop is less than 4.5
°
°°
°
F (2.5
°
°°
°
C),
sterilization resumes automatically.
b. If the temperature drop is more than 4.5
°
°°
°
F (2.5
°
°°
°
C),
the cycle fails, POWER DN message is displayed and
printed and LOW TEMP message is displayed.
c. If the pressure drop is more than 4 psi (0.27 Bar), the
cycle fails, POWER DN message is displayed and
printed and LOW PRES message is displayed.
If a power failure occurred during the HEAT stage, heating
resumes, provided enough water remains in the chamber. If
not, the cycle is aborted, the message “LOW WATER” is
displayed. If a power failure occurs during the dry and
exhaust stages, the unit will automatically resume operation
once the power is back on.
If a power failure occurs during the GLASSWARE
PROGRAM, the system does not allow fast exhaust (since
the exhaust valve is normally closed).
CYC Finish When the cycle has been completed successfully the
message CYC FINISH is displayed.