
54
8
.
In the Event of Failure…
Failure indication and Its Contents
Error
Indication
Cause
Symptom
Countermeasur
e
Controller
error
Controller Error
Service Call
When the setting value which
is memorized in the memory
chip cannot be read properly,
or when an abnormal value
is displayed
All controls
of the heater
and solenoid
valve are
turned OFF.
Turn the breaker
on again. If the
trouble persists,
please call our
customer
service center.
Water
leakage
error
Leak Error
Service Call
When the resistance value of
the water leakage sensor
input becomes less than the
water leakage error judgment
value
Turn the breaker
off and check
the piping parts.
For details, refer
to page
56
.
Overheat of
heater
Over Heat Error
Service Call
When temperature at the
heater excesses the error
judgment value, or when
breakage or shortage occurs
on the temperature sensor
Change the
heater.
Burnout of
heater
Heater Error
Service Call
When temperature of the
heater did not rise after
certain time passed during
distillation
Change the
heater.
Tank water
level meter
error
Tank Water
Sensor Error
Service Call
When the condition of the
float contacting points in the
tank water level meter
becomes abnormal
Change the float
switch.
Pure water
conductivity
meter (N)
error
Ion-Exchange-N
Sensor Error
Service Call
When the state of breakage
or shortage of the thermistor
sensor for pure water
conductivity gauge continues
longer than error judgment
time
Change the pure
water
conductivity
sensor.
①
Pure water
conductivity
meter (H)
error
Ion-Exchange-H
Sensor Error
Service Call
When the state of breakage
or shortage of the thermistor
sensor for pure water
conductivity gauge continues
longer than error judgment
time
Change the pure
water
conductivity
sensor.
②
Distilled
water
conductivity
meter error
Distilled Water
Sensor Error
Service Call
When the state of breakage
or shortage of the thermistor
sensor for distilled water
conductivity gauge continues
longer than error judgment
time
Change the
distilled water
conductivity
sensor.