Hitachi RAK-18NH6AS Service Manual page 13

INDOOR UNIT INDICATORS
OPERATION INDICATOR
TEMPORARY SWITCH
Use this switch to start and stop when the remote controller does not work. [Use non-conductor stick
(example: toothpick)]
By pressing the temporary switch, the operation is done in previously set operation mode.
G
When the operation is done using the temporary switch after the power source is turned off and turn
G
on again, the operation is done in automatic mode.
TEMPORARY
SWITCH
Temporary Switch
Press
Non-conductor Stick
FILTER LAMP
When the device is operated for a total of about 200
hours, the FILTER lamp lights to indicate that it is time
to clean the  lter.
OPERATION LAMP
This lamp lights during operation.
The OPERATION LAMP  ashes in the following cases
during heating.
(1) During preheating
For about 2––3 minutes after starting up.
(2) During defrosting
Defrosting will be performed about once every one
hour when frost forms on the heat exchanger of the
outdoor unit, for 5––10 minutes each time.
TIMER LAMP
This lamp lights when the timer is working.
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TEMPORARY
SWITCH