Yamato Scientific WG221S Water Purifiers - Manual (Page 29)

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Emergent Troubleshooting
Identification of “TROUBLE” / Identification of causes
This unit has self-diagnosis function. If any operational abnormalities or machine troubles should occur,
the alarm lamp in operation panel blinks. f this occurs, immediately disconnect the breaker and turn the
tap off.
See page 36 “Display and Details of Error Code” ,if you need to know about the details of identification of
“TROUBLE”.
The TROUBLE lamp also blinks.
Water leakage
The TROUBLE lamp also blinks.
Heater overheating
The TROUBLE lamp also blinks.
Defect of the float switch for the
distilled water tank.
The TROUBLE lamp also blinks.
Abnormal boiler water level
The TROUBLE lamp also blinks.
Defect of the float switch to
control the boiler water level.
The TROUBLE lamp also blinks.
Defect in the electric circuit