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CHECK ITEM PRIOR TO NOTIFY A FAILURE
ENGLISH
CHECK ITEM PRIOR TO NOTIFY A FAILURE
Symptom
Check Item
Counter-measure
The Product doesn't work
Is power not supplied?
Supply Power
The Product doesn't work
through you press the 'ON'
switch
Is Air Filter, Total heat
exchanger clogged severely?
Follow cleaning and changing
method.
Less than -10 °C(14 °F) or
more than 45 °C(113 °F)?
It's standby mode for protect-
ing Total Heat Exchanger.
Even though you change the
fan speed, the operation mode
doesn't change and it changes
to 'Auto or Low'
Less than -10 °C(14 °F) or
more than 45 °C(113 °F)?
It's operation mode to protect
Total Heat Exchanger.
