20
Ventilator
Check Item prior to notify a failure
The Product doesn't work
The Product doesn't work
through you press the 'ON'
switch
Even though you change the
fan speed, the operation mode
doesn't change and it changes
to 'Auto or Low'
Even though you push the but-
ton of remote controller, any
function doesn't work.
Is power not supplied?
Is the Indoor temperature less
than 45°c or more than 40°C?
Is the Indoor temperature less
than -10°C or more than 45°C?
Is the icon " " displaying
on remote controller?
Is the icon " " displaying
on remote controller? Does the
message "HL" display on
remote controller when you
push the button.
Is the toast massage display-
ing on remote controller?
Supply Power
It's standby mode for protect-
ing Total Heat Exchanger.
It's operation mode to protect
Total Heat Exchanger.
It's Child Lock mode. Refer to
Remote controller.
It's centralized control mode.
You can't control on remote
controller.
Refer to Remote controller.
Symptom
Check Item
Counter-measure
Summary of Contents for MFL67870417
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