Hitachi RPIH-3.0HNAUB1Q, Operation Installation Maintenance Manual, Page: 10 / 24

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7. Cleaning of Filter
The operation of indoor unit is strictly prohibited
without filter.
Please turn off the main power supply before
removing the filter (the previous operational function
may occur).
7.1 Removing Filter
7.2 Cleaning Filter
Please clean the filter in the following steps.
Step 1
Use a dust collector or water to remove the dirt
from filter.
Never use hot water of which the temperature is above
approx. 40°C.
Step 2
Whisk the water off, and air-dry the filter in a space
exposed to no sunlight.
7.3 Resetting the Filter Indicator
Press the "Reset" key after the cleaning of filter.
The filter indicator "FILTER" disappears, while the
time of next cleaning of filter is set automatically.
8.1 If Trouble Still Remains
If the trouble still remains even after checking
the following, contact your contractor and inform
them of the following items.
(1) Unit Model Name
(2) Content of Trouble
(3) Alarm Code No. on Liquid Crystal Display
8.2
8.3