-42-
After-sales Service and Warranty
When you request repair
Warranty (attachment)
If any troubles should occur, note the error
code, stop the operation immediately. Turn the
power switch off, pull the power cable 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.
●
The seller or Yamato Scientific
’s fives 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
Minimum period to keep repair parts is 7 year 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 a
switchboard or outlet?
●
Is there any power failure?
No water is supplied.
(ion-exchanged water)
●
Low pressure or interruption of water service.
●
Defect of solenoid valve to take ion-exchanged or distilled
water.
●
Defect of solenoid valve to supply raw water.
●
Defect of pressure switch.
Water supply can not be stopped.
●
Defect of float switch.
●
Defect of solenoid valve for water supply.
No water is supplied into the boiler.
●
Stoppage in the pre-treatment cartridge.
●
Defect of float switch.
●
Defect of solenoid valve to supply boiler water.
●
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.
●
Stoppage in the membrane filter.
●
Defect of solenoid valve to collect ion-exchanged or
distilled water.
●
Defect of pump/pressure switch for pump.
●
Defect in piping.
Only small amount of water is collected.
●
Stoppage in the membrane filter.
Summary of Contents for WA500
Page 2: ......
