Yamato Scientific WG221S Water Purifiers - Manual (Page 49)

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After-sales Service and Warranty
When you request repair Warranty (attachment)
●The seller or Yamato Scientific’s gives you the warranty.
Keep your warranty card for future references. Check the
name of distributor, date of purchase and any other
contents of warranty.
●The term of warranty is one year limited commencing the
date of purchase. Repair is made without charge
according to the contents of warranty.
●As for repair after expiration of the warranty period,
consult the seller or our Technical Service Department.
As long as the function of the unit can be maintained by
repair, we will repair the unit upon your request.
Minimum period to keep repair parts in stock
If any troubles should occur, note the error
code, stop the operation immediately. Turn
the power switch off, pull the power cord
out and contact the seller or Yamato
Scientific’s Technical Service Department.
(Necessary information)
●Model number
●Serial number
●Date of purchase
●See the warranty or nameplate on the unit
●Detailed information on difficulties
●The service man requests you to show the
warranty on his visit.
Minimum period to keep repair parts is 7 years limited after
we stop the production of this model of units. The repair
parts mean any necessary parts to maintain the
performance of the unit.
When you encounter the following
Fault indication Check points
STAND BY switch is not lit when the
breaker is turned on. ● Is the power supply cable is securely connected with the outlet?
● Is there any power failure?
No water is supplied.
● Defect of solenoid valve to supply raw water.
● Low pressure or interruption of water service.
● Defect of pressure switch.
● Stoppage in the pre-treatment cartridge.
Water supply can not be stopped.
● Defect of float switch.
● Defect of solenoid valve to supply raw water.
No water is supplied into the boiler.
● Defect of solenoid valve to supply boiler water
● Defect of float switch.
● Defect of solenoid valve to drain boiler water.
Heater can not be turned on.
● Defect of float switch.
● Heater disconnection.
No cooling water flows. ● Defect of solenoid valve for cooling water.
Distilled water is not drained. ● Defect of solenoid valve to drain initial distilled water.
Boiler water is not drained. ● Defect of solenoid valve to drain boiler water.
Distilled water is not stored.
● Defect of solenoid valve to drain initial distilled water.
● Defect in piping.
Distillation would not stop. ●Defect of float switch.
No water is collected.
● Defect of solenoid valve to collect ion-exchanged or distilled water.
● Defect of pump to take distilled water.
● Defect in piping.