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8. ERROR DIAGNOSIS AND CHECK LIST
8-1. DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION
SYMPTOM GUIDE FOR SERVICE CALL
NO POWER
Water inlet trouble
Is the power plug connected firmly to
220-240V~ outlet?
Power failure? or Breaker opened?
Is the outlet controlled by a switch.
Is displayed?
Is the tap opened?
Is the tap frozen?
Is the water supply shut-off?
Visit to check
Is filter in the inlet valve
clogged with foreign material?
Clean the filter of
inlet valve
YES
NO
YES
YES
NO
NO
NO
YES
Visit to check
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