46
In the Event of Failure…
Trouble Shooting
Condition
Check the following
Water is not supplied.
•
Defect of raw water supply solenoid valve.
•
Insufficient
city
water
pressure or water failure.
•
Defect of pressure switch.
•
Clogging of pre-treatment cartridge.
Water supply does not stop.
•
Defect of float switch.
•
Defect of raw water supply solenoid valve.
No water is supplied to boiler.
•
Defect of boiler water supply solenoid valve.
•
Defect of float switch.
•
Clogging of pre-treatment cartridge.
•
Opened boiler water drain cock.
Heater does not turn on.
•
Defect of float switch.
•
Break in heater.
Cooling water does not flow.
•
Defect of cooling water solenoid valve.
The initial accumulated water is
not drained.
•
Initial boiled water is not drained.
Distilled water is not accumulated.
•
Defect of initial boiled water drain solenoid valve.
•
Defect of piping.
Distilled water is not stored.
•
Defect of float switch.
Water is not sampled.
•
Defect of Ion exchanged water/Distilled water sampling
solenoid valve.
•
Defect of distilled water sampling pipe.
•
Defect of piping.
Measures in emergency
Error indications/causes
This unit has a self-diagnosis function. When a trouble occurs during operation, or when a failure
occurs on the unit, an error message is displayed on the control panel. Turn off the earth leakage
breaker when an alarm occurs, close the tap.
For details of error indications, refer to "Failure indication and Its Contents (page 42)".
Measures
When the following error signs appear, memorize the sign and turn the tap off immediately. If an error
occurs, part change or unit check becomes required. Please call the shop from which you made a
purchase or our customer support center. In that case, please notify them of the error sign.
